Food from disco somewhere in Kent (4,8)
I believe the answer is:
club sandwich
'food' is the definition.
(club sandwich is a kind of food)
'disco somewhere in kent' is the wordplay.
'disco' becomes 'club' (a disco is a type of night club).
'somewhere in kent' becomes 'Sandwich' (Sandwich is a town in Kent).
'club'+'sandwich'='CLUB SANDWICH'
'from' is the link.
(Other definitions for club sandwich that I've seen before include "Three-layer snack" , "Three or more slices of bread with fillings" , "Double-decker" , "extra large snack" .)