Crossword Genius

Call round (4)

Ross

I believe the answer is:

ring

I believe this is a double definition.

'call' is the first definition.
(telephone call)

'round' is the second definition.
(synonyms)

(Other definitions for ring that I've seen before include "Contact" , "Circle that's square for boxers" , "Hoop" , "Marriage token" , "resonant sound" .)

I've seen this clue in The Guardian, The Times, The Independent, The Globe and Mail and the Financial Times.
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