Crossword Genius

Extracting from and leaving (7,3)

Ross

I believe the answer is:

pulling out

I'm a little stuck... Click here to teach me more about this clue!

'extracting' is the definition.
('pull out' can be a synonym of 'extract')

'from and leaving' is the wordplay.
I cannot quite understand how this works, but
'from' could be 'in' (I've seen this in other clues) and 'in' is found in the answer.
This explanation may well be incorrect...

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I've seen this clue in the Evening Standard.
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