Supplying food cold at European gathering (8)
I believe the answer is:
catering
'supplying food' is the definition.
('cater' can be a synonym of 'supply food')
'cold at european gathering' is the wordplay.
'cold' becomes 'C' (eg on taps).
'european' becomes 'E' (abbreviation e.g. EU).
'gathering' becomes 'ring' (ring can mean a group of people).
'c'+'at'+'e'+'ring'='CATERING'
(Other definitions for catering that I've seen before include "provision of food" , "Making allowances" , "Providing food and services" , "essential feature of the tourist industry" , "Providing food, entertainment etc." .)