Innocent victim (6)
I believe the answer is:
stooge
'innocent victim' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stooge that I've seen before include "Yes-man" , "A comedian's assistant, butt of his jokes" , "Performer who is butt of another's jokes" , "Fall guy" , "lackey" .)