Settling most of new police trap (7)

I believe the answer is:

nesting

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'settling' is the definition.
The answer and definition can be both to do with contact as well as being present participle verbs.
Perhaps you can see a link between them that I don't see?

'most of new police trap' is the wordplay.
'most of' means to remove the last letter.
'police trap' becomes 'sting' (police operation designed to trap criminals).
'new' with its final letter taken off is 'ne'.
'ne'+'sting'='NESTING'

Can you help me to learn more?

(Another definition for nesting that I've seen is " (Of birds) building a home".)

I've seen this clue in The Times.

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