Local belt taken by boxer perhaps (4)
I believe the answer is:
hook
'local belt' is the definition.
'hook' can be an answer for 'belt' (thesaurus). I am not certain of the 'local' bit.
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for hook that I've seen before include "Bag" , "Peter Pan 1ac" , "Curved hanger; punch" , "Attacking shot" , "Punch; fish catcher" .)