Was it possibly waspish? (5)

I believe the answer is:

waist

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'was it possibly waspish?' is the definition.
I can't tell whether this defines the answer.

'was it possibly' is the wordplay.
'possibly' indicates an anagram.
'was'+'it'='wasit'
'wasit' anagrammed gives 'WAIST'.

Can you help me to learn more?

(Other definitions for waist that I've seen before include "part of frame" , "Middle part of the body" , "Band may go round here" , "Middle part of a ship" , "Part of the trunk" .)

I've seen this clue in the Evening Standard.

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