Diction student of fiction (5)
I believe the answer is:
eliza
'diction student of fiction' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for eliza that I've seen before include "Miss Doolittle/s first name" , "- Doolittle (Pygmalion)" , "- Doolittle (My Fair Lady)" , "Miss Doolittle" , "woman" .)