Fought to be discarded (8)
I believe the answer is:
scrapped
I believe this is a double definition.
'fought' is the first definition.
(I've seen this before)
'be discarded' is the second definition.
(I've seen this in another clue)
'to' acts as a link.
(Other definitions for scrapped that I've seen before include "Fought - ceased to use" , "dumped" , "Junked or discarded" , "did battle" , "Abandoned - had a fight" .)