Paid as agreed (7)
I believe the answer is:
settled
I believe this is a double definition.
'paid' is the first definition.
(thesaurus)
'agreed' is the second definition.
(something settled has been agreed)
'as' is the link.
(Other definitions for settled that I've seen before include "Sank or came to rest" , "Colonised; decided" , "Put down roots; decided" , "came to agreement" , "no longer an issue" .)