The term CLOWN'S PROP can be summarized by two crossword solutions: STILT (5 letters) and PIE (3 letters). A clown's prop is an object used by a clown in a performance, such as a stilt or a PIE. Stilts are poles with footrests that allow the user to stand at a greater height than normal. Pies are a type of pastry dish filled with fruit, custard, or other ingredients. Clowns often use pies as a comedic prop, throwing them at each other or into the audience.