Coin-op place (6)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">coin-op place</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for arcade that I've seen before include "Colonnade" , "Covered passage containing shops" , "Here one may find shops" , "Shopping mall" , "area of gaming" .)