Crossword Genius

When finished, take a quick look (4,4)

Ross

I believe the answer is:

once over

'a quick look' is the definition.
(as in giving something the once-over)

'when finished' is the wordplay.
'when' becomes 'once' (synonyms).
'finished' becomes 'over' (over can mean finished or ended).
'once'+'over'='ONCE-OVER'

'take' acts as a link.

(Other definitions for once over that I've seen before include "quick read?" , "inspection" , "Quick survey" , "examination" .)

I've seen this clue in the Evening Standard.
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