Spend some time relaxing in Shanghai (4)

I believe the answer is:

hang

I'm a little stuck... Click here to teach me more about this clue!

'spend some time relaxing' is the definition.
I can't tell whether this defines the answer.

'in shanghai' is the wordplay.
'in' says the answer is hidden in the clue.
'HANG' is hidden within 'shanghai'.

Can you help me to learn more?

(Other definitions for hang that I've seen before include "Hover" , "Kill with a noose" , "Be suspended" , "Put up picture" , "Suspend, perhaps execute" .)

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