An abandoned fight? (5)
I believe the answer is:
scrap
'fight?' is the definition.
(a scrap is a minor fight)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for scrap that I've seen before include "Cancel; fight" , "row" , "Argy-bargy" , "Fragment or remnant" , "Discarded material" .)