Jane Rochester's maiden name (4)
I believe the answer is:
eyre
'jane rochester's maiden name' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for eyre that I've seen before include "Bronte heroine ` `Jane ....' '" , "Jane --, 1874 novel" , "See 1" , "one loved by Rochester" , "mediaeval court" .)