Treatment for unwanted growth repaired torn carpels (4,7)

I believe the answer is:

corn plaster

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'treatment for unwanted growth' is the definition.
I know nothing about this answer so I can't judge whether this works.

'repaired torn carpels' is the wordplay.
'repaired' indicates anagramming the letters.
'torn'+'carpels'='torncarpels'
'torncarpels' is an anagram of 'CORN PLASTER'.

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I've seen this clue in The Independent.

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