With cooking utensil, check out food store (6)
I believe the answer is:
pantry
'food store' is the definition.
(I've seen this before)
'with cooking utensil check out' is the wordplay.
'with' means one lot of letters go next to another.
'cooking utensil' becomes 'pan' (pan is a kind of cooking utensil).
'check out' becomes 'try'.
'pan'+'try' is 'PANTRY'.
(Other definitions for pantry that I've seen before include "Store cupboard" , "Type of larder" , "Room off the kitchen" , "Food store" , "Kitchen storeroom" .)