Crossword Genius

Took off in feat crossing channel (8)

Ross

I believe the answer is:

deducted

'took off' is the definition.
('deduct' can be a synonym of 'take off')

'feat crossing channel' is the wordplay.
'feat' becomes 'deed' ('deed' can be a synonym of 'feat'**).
'crossing' is an insertion indicator.
'channel' becomes 'duct' ('duct' can be a synonym of 'channel').
'deed' placed around 'duct' is 'DEDUCTED'.

'in' is the link.

(Other definitions for deducted that I've seen before include "Taken away (from)" , "Taken off (from sum)" , "Subtracted" .)

I've seen this clue in The Telegraph.
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