Some drama fellow misplaced in non-fiction (3)
I believe the answer is:
act
'fiction' is the definition.
(I know that act is a type of dramatic composition)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for act that I've seen before include "Perform - part of a play" , "Exploit" , "Assumed attitude" , "Accomplishment" , "Written piece of legislation" .)