Crossword Genius

Rock (5)

Ross

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6 7 1,2,1

(Other definitions for arena that I've seen before include "Sphere of intense activity" , "Amphitheatre's central space" , "O2, for example" , "Where gladiators fought" , "Place for public contests" .)

I've seen this clue in the New York Times, the USA Today, the LA Times, the Penny Press, the King Feature Syndicate, the Evening Standard and The Mirror.
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