Answer:

SIMON

AnswerCrossword Clue
SIMONGarfunkel's ex-partner
SIMONOne of The Chipmunks
SIMONBig name in imitation toys?
SIMON"Biloxi Blues" writer
SIMONDo what he says
SIMONOutspoken American Idol judge
SIMONCarly or Paul
SIMONGraceland artist
SIMONZealot among the Disciples
SIMON1980s memory-game fad
SIMONWho says?
SIMONGuy who "says"
SIMON"The Goodbye Girl" writer
SIMONLiberator Bolivar
SIMONSimple fellow of rhyme
SIMON... says: kids' game
SIMONDo only what he says
SIMONOne who "says," in a kids' game
SIMONAcid-tongued "American Idol" judge
SIMON"The Boxer" songwriter
SIMONElectronic memory game with colored buttons
SIMONSimple fellow
SIMONSimple guy
SIMON"You Can Call Me Al" singer Paul
SIMONSongwriter Paul
SIMON"Lost in Yonkers" playwright Neil
SIMONSimpleton of rhyme
SIMON"Simple" pie eater of rhyme
SIMON"... says..."
SIMONSchuster's publishing partner
SIMONPlaywright Neil
SIMONOne of Alvin's singing partners
SIMONCowell of "American Idol"
SIMONFormer "American Idol" judge Cowell
SIMONOrder giver in a kids' game
SIMONOutspoken talent judge Cowell
SIMONCreator of Madison and Ungar
SIMON"...says"
SIMONSimple one of rhyme
SIMON"Lost in Yonkers" playwright