Conservative with baskets of food and drink (8)
I believe the answer is:
champers
'drink' is the definition.
(informal term for champagne)
'conservative with baskets of food' is the wordplay.
'conservative' becomes 'C' (UK political abbreviation).
'with' means one lot of letters go next to another.
'baskets of food' becomes 'hampers' (hamper can mean a basket for food).
'c'+'hampers'='CHAMPERS'
'and' acts as a link.
(Other definitions for champers that I've seen before include "People putting their teeth in" , "celebratory drink" , "Kind of sparkling wine (slang)" , "Might they be extremely eager" , "Drink casually" .)