Terminated beyond (4)
I believe the answer is:
over
This clue is a double definition.
'terminated' is the first definition.
(I know that terminated can be written as over)
'beyond' is the second definition.
(I've seen this in another clue)
(Other definitions for over that I've seen before include "completed" , "Finished, concluded" , "Given too much money" , "bowling unit" , "Having gone < to America" .)