Fighting court case (6)
I believe the answer is:
action
This clue is a double definition.
'fighting' is the first definition.
(I've seen this before)
'court case' is the second definition.
(a legal action)
(Other definitions for action that I've seen before include "Take proceedings" , "Deed - lawsuit - battle" , "Jarndyce and Jarndyce, say" , "Fighting - lawsuit" , "A judicial proceeding brought by one party against another" .)