Man a subject of biography turning the stomach (5)
I believe the answer is:
alfie
'man' is the definition.
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for alfie that I've seen before include "Name of fellow" , "1966 Michael Caine film" , "well-known film" , "Boy" , "Michael Caine role reprised by Jude Law" .)