Domestic storm centre (6)

I believe the answer is:

teacup

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'domestic storm centre' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?

This is all the clue.

Can you help me to learn more?

(Other definitions for teacup that I've seen before include "Scene of unnecessary storm!" , "Part of the service" , "Earl Grey holder?" , "Cockney thieves found here" , "storm-centre?" .)

I've seen this clue in The Globe and Mail.

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