Something to attract shoppers in Jerusalem (4)
I believe the answer is:
sale
'something to attract shoppers' is the definition.
(I know that sale can attract a shopper)
'in jerusalem' is the wordplay.
'in' indicates the answer is hidden within the clue.
'SALE' is hidden in the letters of 'jerusalem'.
(Other definitions for sale that I've seen before include "Disposal - auction" , "Public auction" , "Exchange of goods for fixed amount" , "Disposal of shop's stock at reduced prices" , "Occasion for buying at reduced prices" .)