Incorrectly packaged tinned goat's going off (10)

I believe the answer is:

detonating

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'incorrectly packaged tinned goat's going off' is the definition.
I can't tell whether this defines the answer.

'tinned goat's going off' is the wordplay.
'going off' indicates an anagram (letters go or move around).
'tinned'+'goat'='tinnedgoat'
'tinnedgoat' anagrammed gives 'DETONATING'.

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I've seen this clue in The Times.

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