Agreeing upon and paying one's debts? (8)
I believe the answer is:
settling
'agreeing' is the definition.
(settling is a kind of agreeing)
'and paying one's debts?' is the wordplay.
I cannot really see how this works, but
'and' could be 'n' (common abbreviation for 'and') and 'n' is present in the answer.
'one' could be 'li' (I've seen this in other clues) and 'li' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'upon' is the link.
Can you help me to learn more?
(Other definitions for settling that I've seen before include "Sorting out" , "Coming to terms or becoming established" , "Coming to rest or paying a bill" , "Coming to mutually agreeable terms" , "Gradually sinking to a lower level" .)