Refuse fights (6)
I believe the answer is:
scraps
I believe this clue is a double definition.
'refuse' is the first definition.
('scraps' can be a synonym of 'refuse')
'fights' is the second definition.
(I've seen this before)
(Other definitions for scraps that I've seen before include "Oddments - fights" , "43 [WASTE]" , "Throws away" , "Bits and pieces, or slang fights" , "Fragments left over (6)" .)