Norm escapes veto correctly but takes excess measures to make amends (15)

I believe the answer is:

overcompensates

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'takes excess measures to make amends' is the definition.
I can't tell whether this defines the answer.

'norm escapes veto correctly' is the wordplay.
'correctly' is an anagram indicator.
'norm'+'escapes'+'veto'='normescapesveto'
'normescapesveto' anagrammed gives 'OVERCOMPENSATES'.

'but' acts as a link.

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I've seen this clue in the Sydney Morning Herald.

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