Contributions to the party by various peoples (9)
I believe the answer is:
donations
'contributions' is the definition.
('donation' can be a synonym of 'contribution')
'the party by various peoples' is the wordplay.
'the party' becomes 'do' (do can informally mean a party).
'by' is a charade indicator (letters next to each other).
'various peoples' becomes 'nations' (nation is a kind of people. I am not sure about the 'various' bit.).
'do'+'nations'='DONATIONS'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for donations that I've seen before include "Contributions" , "Gifts" .)