Moe, Larry or Curly (6)
I believe the answer is:
stooge
'moe larry or curly' 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 "Comedian's assistant-victim" , "Fall guy" , "Partner who is the butt of comedian's joke" , "Comic's straight man" , "Comical straight man" .)