The girl I get in the end (4)
I believe the answer is:
enid
'the girl' is the definition.
(girl's name)
'i get in the end' is the wordplay.
'get in' is an insertion indicator.
'i' placed into 'end' is 'ENID'.
(Other definitions for enid that I've seen before include "Arthurian wife" , "- Blyton, children's writer" , "Dine with Ms blyton, writer" , "& 18 Down Children's author" , "Woman" .)