Shopper's delight (4)
I believe the answer is:
sale
'shopper's delight' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sale that I've seen before include "Retail event - town in Greater Manchester" , "Public auction" , "Auction; Cheshire town" , "Period of reduced prices" , "Disposal - auction" .)