Lawsuit; deed (6)
I believe the answer is:
action
I believe this clue is a double definition.
'lawsuit' is the first definition.
(synonyms)
'deed' is the second definition.
(I've seen this before)
(Other definitions for action that I've seen before include "Accomplishment" , "Fighting - lawsuit" , "Not CIA (anag)" , "A judicial proceeding brought by one party against another" , "claim in court" .)