Buffalo Bill's sharpshooter (5)
I believe the answer is:
annie
'buffalo bill's sharpshooter' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for annie that I've seen before include "1977 Broadway musical" , "Famous musical about orphan girl" , "Sharpshooter Oakley or musical orphan" , "Popular stage musical" , "Musical based on cartoon strip" .)