1) Class clown 2) Clown 3) Comedian 4) Comic 5) Court jester 6) Entertaining sort 7) Fancy tickler 8) Funny girl 9) Funny one 10) Funny person 11) Funnybone tickler 12) Person making others laugh 13) Smile elicitor 14) Toy, to a tot 
• (n.) One who amuses.
A·mus'er (-ẽr) noun One who amuses. 
amuser 1. Someone who provides diversion; a diverter, an entertainer.2. In the past, someone who put people in a muse; that which arrests or distracts attention; especially, with things trifling; someone who trifled with people's attention or expectations; a trifler, deceiver, a cheat.