A novel by Jane Austen (4)
I believe the answer is:
emma
'a novel by jane austen' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for emma that I've seen before include "young woman in novel" , "companion for Pip" , "Ack -, a term for a.m." , "Jane Austen novel and Nelson's lover" , "J Austen novel" .)