Cheated, unable to continue (4)
I believe the answer is:
done
I believe this is a double definition.
'cheated' is the first definition.
'unable to continue' is the second definition.
(I've seen this in another clue)
(Other definitions for done that I've seen before include "Complete; finished" , "Completed" , "See 23" , "Managed" , "Robbed" .)