Cheated -- agreed? (4)
I believe the answer is:
done
I believe this clue is a double definition.
'cheated' is the first definition.
'agreed?' is the second definition.
(thesaurus)
(Other definitions for done that I've seen before include "See 23" , "This settled" , "Managed" , "Concluded (and dusted?)" , "(Of food) well cooked" .)