Was it heartless to hang around? (4)

I believe the answer is:

wait

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'to hang around?' is the definition.
(to hang around is to wait around or linger)

I don't understand the remainder of the clue.

(Other definitions for wait that I've seen before include "Serve at table" , "Serve on tables" , "Be patient" , "Hang about" , "Be deferred" .)

I've seen this clue in the Evening Standard.

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