Abate; postpone (5)
I believe the answer is:
remit
I believe this clue is a double definition.
'abate' is the first definition.
(I've seen this in another clue)
'postpone' is the second definition.
(I know that postpone can be written as remit)
(Other definitions for remit that I've seen before include "Scope - send money" , "Dispatch" , "Pardon (a sin)" , "send money, maybe" , "forward" .)