Quietly persuaded to get purified (6)

I believe the answer is:

purged

'purified' is the definition.
(purging is a kind of purifying)

'quietly persuaded' is the wordplay.
'quietly' becomes 'p' (p for piano and quiet).
'persuaded' becomes 'urged' (I've seen this in another clue).
'p'+'urged'='PURGED'

'to get' acts as a link.

I've seen this clue in the Evening Standard.

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