Pothead got smashed and has damaged mouth (3-7)

I believe the answer is:

gap-toothed

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'has damaged mouth' is the definition.
I can't judge whether this definition defines the answer.

'pothead got smashed' is the wordplay.
'smashed' indicates anagramming the letters.
'pothead'+'got'='potheadgot'
'potheadgot' is an anagram of 'GAP-TOOTHED'.

'and' is the link.

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I've seen this clue in The Irish Times.

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