Shopping mall (6)
I believe the answer is:
arcade
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shopping mall</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for arcade that I've seen before include "area of gaming" , "Colonnade" , "Covered area with shops and stalls" , "Covered walk with shops" , "Covered passageway with shops and stalls" .)