Over, finished (4)
I believe the answer is:
past
I believe this clue is a double definition.
'over' is the first definition.
(both can mean finished)
'finished' is the second definition.
(I've seen this in another clue)
(Other definitions for past that I've seen before include "Beyond" , "Bygone" , "The time that has elapsed" , "Finished, gone" , "historical times" .)