Gift for people at party (8)
I believe the answer is:
donation
'gift' is the definition.
(donation is a kind of gift)
'people at party' is the wordplay.
'people' becomes 'nation'.
'at' means one lot of letters go next to another (I've seen this in other clues).
'party' becomes 'do' (do is a kind of party).
'nation' put after 'do' is 'DONATION'.
'for' acts as a link.
(Other definitions for donation that I've seen before include "An offering or charitable gift" , "Do anoint by way of a gift" , "present" , "Gift of money as to charity" , "presentation" .)