Fighter’s grudge about fee is raised at the start (8)
I believe the answer is:
spitfire
'fighter's' is the definition.
(I've seen this before)
'grudge about fee is raised at the start' is the wordplay.
'grudge' becomes 'spite' (I've seen this in another clue).
'about' indicates putting letters inside.
'at the start' indicates taking the first letters.
The first letters of 'fee is raised' is 'fir'.
'spite' enclosing 'fir' is 'SPITFIRE'.
(Other definitions for spitfire that I've seen before include "Quick-tempered person" , "British warplane" , "Wartime fighter aircraft" , "Fierce-tempered person" , "British fighter plane of WW2, or a fiery-tempered person" .)