Covered passageway with shops (6)
I believe the answer is:
arcade
'covered passageway with shops' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for arcade that I've seen before include "Gallery" , "Shops in row" , "Arched passageway between shops" , "covered avenue of shops" , "Covered passage with shops on both sides" .)