Arrive uninvited, making admission collapse (4,5)

I believe the answer is:

gate crash

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'arrive uninvited' is the definition.
(I've seen this before)

'admission collapse' is the wordplay.
'admission' becomes 'gate' (I can't explain this - if you can you should give a lot more credence to this answer).
'collapse' becomes 'crash' (synonyms).
'gate'+'crash'='GATE-CRASH'

'making' is the link.

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I've seen this clue in The Daily Express.

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