Twist of fiction (6)
I believe the answer is:
oliver
'twist of fiction' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for oliver that I've seen before include "Dickens boy who asked for more, and a musical comedy" , "-- Reed, actor" , "Fictional boy who famously asked for more" , "Hardy, maybe" , "Cook" .)