Catching nothing snooping around (7)

I believe the answer is:

noosing

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'catching' 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 an association between them that I can't see?

'nothing snooping around' is the wordplay.
'nothing' becomes 'O' (looks like zero - 0).
'snooping' becomes 'nosing' (I've seen this in another clue).
'around' indicates putting letters inside.
'o' inserted inside 'nosing' is 'NOOSING'.

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I've seen this clue in The Sunday Times and The Times.

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