WikiRhymer has about 600 rhyming words and phrases for "clown" starting with...

brown
    crown
      down
        downe
          drown
            frown
              gown
                lown
                  noun
                    town
                      around
                        downtown
                          facedown
                            renown
                              uptown
                                dumb down
                                  Browne
                                    Towne
                                      • boss one around
                                      • bum around
                                      • cast around
                                      • chase around
                                      • come around
                                      • every time one turns around
                                      • fiddle around
                                      • fool around
                                      • go around
                                      • hang around
                                      • have been around
                                      • horse around
                                      • kick around
                                      • knock around
                                      • learn one's way around
                                      • lie around
                                      • mess around
                                      • mill around
                                      • monkey around
                                      • nose around
                                      • pass around
                                      • play around
                                      • push around
                                      • roll around
                                      • run rings around
                                      • scout around
                                      • screw around
                                      • scrounge around
                                      • show around
                                      • skirt around
                                      • sleep around
                                      • stick around
                                      • tear around
                                      • the other way around
                                      • throw one's weight around
                                      • throw your weight around
                                      • what goes around comes around
                                      • year around
                                      • hanging around
                                      • hangin' around
                                      • do up brown
                                      • bear down
                                      • beat down
                                      • bog down
                                      • bogged down
                                      • boil down
                                      • break down
                                      • bring down
                                      • bring the house down
                                      • burn down
                                      • button down
                                      • calm down
                                      • cast down
                                      • catch with one's pants down
                                      • clamp down
                                      • come down
                                      • crack down
                                      • cut down
                                      • die down
                                      • dig down
                                      • dress down
                                      • dressing down
                                      • drink down
                                      • face down
                                      • flag down
                                      • garbage down
                                      • get one down
                                      • give one a dressing down
                                      • go down
                                      • hand down
                                      • hand me down
                                      • hands down
                                      • haul down
                                      • hold down
                                      • hunt down
                                      • jot down
                                      • keep down
                                      • kick down
                                      • knock down
                                      • knuckle down
                                      • lay down
                                      • let down
                                      • let your hair down
                                      • live down
                                      • mark down
                                      • nail down
                                      • narrow down
                                      • nose down
                                      • pare down
                                      • pay down
                                      • pin down
                                      • pipe down
                                      • play down
                                      • plunk down
                                      • pull down
                                      • put down
                                      • put one's foot down
                                      • put your foot down
                                      • rub down
                                      • run down
                                      • scale down
                                      • set down
                                      • settle down
                                      • shake down
                                      • shout down
                                      • shut down
                                      • simmer down
                                      • sit down
                                      • slap down
                                      • slow down
                                      • smooth down
                                      • step down
                                      • take down
                                      • take lying down
                                      • talk down
                                      • taper down
                                      • tear down
                                      • tie down
                                      • tone down
                                      • track down
                                      • turn down
                                      • turn thumbs down
                                      • upside down
                                      • water down
                                      • watered down
                                      • weight down
                                      • when the chips are down
                                      • win hands down
                                      • with one's pants down
                                      • dumbs down
                                      • dumb down
                                      • town and gown
                                      • hit town
                                      • man about town
                                      • on the town
                                      • out of town
                                      • out on the town
                                      • paint the town
                                      • talk of the town
                                      Pure Rhyme Set #1 of 1 (Add to/Edit Set Members)
                                      Words that have a pure rhyme on their last syllable only.
                                      breakdown
                                        shakedown
                                          break down
                                            • nervous breakdown
                                            End Rhyme Set #1 of 32 (Add to/Edit Set Members)
                                            knockdown
                                              lockdown
                                                knock down
                                                  lock down
                                                    End Rhyme Set #2 of 32 (Add to/Edit Set Members)
                                                    crackdown
                                                      back down
                                                        End Rhyme Set #3 of 32 (Add to/Edit Set Members)

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                                                        Words that "almost" rhyme on the vowel-based rhyme sound of the stressed syllable like: be/eat or maybe/shapely. (Click for more info)
                                                        cowl
                                                          foul
                                                            fowl
                                                              growl
                                                                howl
                                                                  jowl
                                                                    moul
                                                                      owl
                                                                        prowl
                                                                          scowl
                                                                            soule
                                                                              towel
                                                                                afoul
                                                                                  Crowl
                                                                                    Raul
                                                                                      Sproul
                                                                                        • neither fish nor fowl
                                                                                        • neither fish, flesh, nor fowl
                                                                                        • cheek by jowl
                                                                                        • night owl
                                                                                        • throw in the towel
                                                                                        Near Rhyme Set #1 of 32 (Add to/Edit Set Members)
                                                                                        fouled
                                                                                          growled
                                                                                            howled
                                                                                              scowled
                                                                                                Near Rhyme Set #2 of 32 (Add to/Edit Set Members)
                                                                                                bowels
                                                                                                  fouls
                                                                                                    growls
                                                                                                      howls
                                                                                                        jowls
                                                                                                          owls
                                                                                                            towels
                                                                                                              vowels
                                                                                                                Near Rhyme Set #3 of 32 (Add to/Edit Set Members)

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                                                                                                                Rhymes made up of more than one word. For instance, "jealous" and "tell us" or "shaky" and "make me."

                                                                                                                No mosaic rhymes for one-syllable words.