Fine everyone over collapse (4,7)

I believe the answer is:

fall through

'collapse' is the definition.
(thesaurus)

'fine everyone over' is the wordplay.
'fine' becomes 'f' (abbreviation).
'everyone' becomes 'all' (all people).
'over' becomes 'through' (both can mean finished).
'f'+'all'+'through'='FALL THROUGH'

(Another definition for fall through that I've seen is " Don't succeed (when crossing thin ice?)".)

I've seen this clue in The Telegraph.

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