A final observation? (4,4)

I believe the answer is:

last look

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'a final observation?' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'final observation?' is the wordplay.
'final' becomes 'last' (synonyms).
'observation?' becomes 'look' (observation is a kind of look).
'last'+'look'='LAST LOOK'

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

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