Food store created by fat old queen (6)
I believe the answer is:
larder
'food store' is the definition.
(I've seen this before)
'by fat old queen' is the wordplay.
'by' is a charade indicator (letters next to each other).
'fat' becomes 'lard' (lard is a kind of fat).
'old queen' becomes 'ER' (Elizabeth Regina, ie Queen Elizabeth).
'lard' next to 'er' is 'LARDER'.
'created' is the link.
(Other definitions for larder that I've seen before include "Buttery" , "Small room for storing food" , "Food storeroom" , "Place where food is kept" , "Room or cupboard for storing food" .)