Conforming to a stock image (11)
I believe the answer is:
stereotyped
'conforming to a stock image' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for stereotyped that I've seen before include "cast as nutty professor, say" , "Conforming to a stock image" , "Tired" , "Hackneyed" , "Conforming to stock idea" .)