He comes in to wait finally (2,3,3)

I believe the answer is:

at the end

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'finally' is the definition.
(I've seen this in another clue)

'he comes in to wait' is the wordplay.
'comes in to' is an insertion indicator.
'wait' becomes 'attend' (I can't explain this - if you can you should give a lot more credence to this answer).
'he' placed inside 'attend' is 'AT THE END'.

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I've seen this clue in The Globe and Mail.

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