Show approval for phone scandals? Criminal! (4,4,5)

I believe the answer is:

clap ones hands

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'show approval for phone scandals? criminal' is the definition.
I can't tell whether this defines the answer.

'phone scandals? criminal' is the wordplay.
'criminal' indicates an anagram.
'phone'+'scandals'='phonescandals'
'phonescandals' is an anagram of 'CLAP ONE'S HANDS'.

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I've seen this clue in The Irish Times.

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