Hand round last of wine before a party (6)
I believe the answer is:
fiesta
'party' is the definition.
(I know that fiesta is a type of party)
'hand round last of wine before a' is the wordplay.
'hand' becomes 'fist' (hand curled into a fist).
'round' indicates putting letters inside.
'last of' says to take the final letters.
'before' is a charade indicator (letters next to each other).
The last letter of 'wine' is 'e'.
'fist' going around 'e' is 'fiest'.
'fiest'+'a'='FIESTA'
(Other definitions for fiesta that I've seen before include "Saint's day; carnival" , "religious celebration" , "A public holiday in Barcelona" , "foreign holiday" , "Festival, fete" .)