Girls' night out in Perth: any drunk? (3-5)

I believe the answer is:

hen-party

'girls' night out' is the definition.
(I've seen this in another clue)

'perth any drunk?' is the wordplay.
'drunk?' indicates anagramming the letters (I've seen 'drunk' mean this).
'perth'+'any'='perthany'
'perthany' anagrammed gives 'HEN-PARTY'.

'in' acts as a link.

I've seen this clue in The Sun.

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