Brontë governess (4)
I believe the answer is:
eyre
'bronte governess' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for eyre that I've seen before include "Charlotte Bronte wrote 'Jane . . . .'" , "Jane . . . ., . . . . Square" , "heroine, so-called" , "See 1" , "lake, down under" .)