1815 Jane Austen novel (4)
I believe the answer is:
emma
'1815 jane austen novel' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for emma that I've seen before include "Female" , "Titled heroine" , "Jane Austen's fourth novel (1815)" , "Lady Hamilton or Lady Thompson?" , "Name of Nelson's Lady Hamilton" .)