Cold dropout in food shop (7)
I believe the answer is:
chippie
'food shop' is the definition.
(I've seen this before)
'cold dropout' is the wordplay.
'cold' becomes 'c' (eg on taps).
'dropout' becomes 'hippie' (I've seen this before).
'c'+'hippie'='CHIPPIE'
'in' acts as a link.
(Other definitions for chippie that I've seen before include "food shop" , "character in fast-food outlet" .)