Austen heroine (4)
I believe the answer is:
emma
'austen heroine' is the definition.
(heroine of Jane Austen's novel Emma)
This is the entire clue.
(Other definitions for emma that I've seen before include "Miss Woodhouse?" , "Flaubert's heroine" , "Title of novel by Jane Austen" , "Name of Nelson's Lady Hamilton" , "Madame Bovary, perhaps" .)