Fresh discussion on denial surrounding old note (13)
I believe the answer is:
renegotiation
'denial surrounding old note' is the definition.
I can't judge whether this definition defines the answer.
'fresh discussion' is the wordplay.
'fresh' becomes 're' (I am not sure about this - if you are sure you should believe this answer much more).
'discussion' becomes 'negotiation' (negotiation is a kind of discussion).
're'+'negotiation'='RENEGOTIATION'
'on' is the link.
Can you help me to learn more?
(Other definitions for renegotiation that I've seen before include "Act of reaching fresh agreement" , "Process of changing agreed terms" .)