Cheat swaggering, say, irreverently (4,2,4)

I believe the answer is:

take in vain

'say irreverently' is the definition.
(as in taking the Lord's name in vain)

'cheat swaggering' is the wordplay.
'cheat' becomes 'take in' (I've seen this before).
'swaggering' becomes 'vain' (a vain or self-important person might swagger).
'takein'+'vain'='TAKE IN VAIN'

I've seen this clue in The Times.

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