Crossword Genius

Look deranged without editor, flailing (6)

Ross

I believe the answer is:

gander

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'look' is the definition.
(informal term for a look or glance)

I can't explain the remainder of the clue.

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(Other definitions for gander that I've seen before include "Looking at something - ranged (anag)" , "Goose sauce is good for it" , "He has webbed feet" , "male member of the Anatidae family" , "Glimpse" .)

I've seen this clue in The Mirror.
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