Display time in food store (9)
I believe the answer is:
pageantry
'display' is the definition.
(I've seen this before)
'time in food store' is the wordplay.
'time' becomes 'age' (an age is a period of time).
'in' indicates putting letters inside.
'food store' becomes 'pantry' (cupboard for storing food).
'age' placed inside 'pantry' is 'PAGEANTRY'.
(Other definitions for pageantry that I've seen before include "Spectacle" , "Splendid display" , "Show" .)