A female halting, deeply aroused (6)
I believe the answer is:
aflame
'deeply aroused' is the definition.
(I've seen this before)
'a female halting' is the wordplay.
'a female' becomes 'af' (I've seen this in other clues).
'halting' becomes 'lame' ('lame' can be a synonym of 'halting').
'af'+'lame'='AFLAME'
(Other definitions for aflame that I've seen before include "Ma, flea could be burning" , "Deeply aroused" , "Ablaze" , "fired up?" , "very hot" .)