Pardon; send payment (5)
I believe the answer is:
remit
I believe this is a double definition.
'pardon' is the first definition.
(I've seen this in another clue)
'send payment' is the second definition.
(I've seen this before)
(Other definitions for remit that I've seen before include "Scope - send money" , "Cancel - terms of reference" , "forward" , "Pardon or transmit money" , "Put off" .)