Crossword Genius

Wherein shoppers can play games? (6)

Ross

I believe the answer is:

arcade

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But I can't explain it at all! Could you help me understand?

(Other definitions for arcade that I've seen before include "Covered area with shops and stalls" , "Arched passageway between shops" , "Covered area or passage with shops" , "Covered passage containing shops" , "Covered walk with shops" .)

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