The girl I take out (5)
I believe the answer is:
katie
'the girl' is the definition.
(woman's name)
'i take out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'i'+'take'='itake'
'itake' with letters rearranged gives 'KATIE'.
(Other definitions for katie that I've seen before include "Catherine (short form)" , "Girl's name; a tike (anag.)" , "-- Price ( = Jordan)" .)