What's tea passed round in? (5)

I believe the answer is:

china

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

(Other definitions for china that I've seen before include "Where one regularly unloads junk" , "Ceramic; mate" , "Fine white ceramic" , "chum" , "The most populous country in the world" .)

I've seen this clue in The Telegraph.

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