Crossword Genius

Duck not about to become friend (6)

Ross

I believe the answer is:

quaker

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'friend' is the definition.
('Quaker' can be a synonym of 'friend')

I don't understand the rest of the clue.

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(Other definitions for quaker that I've seen before include "Frightened" , "One of the Religious Society of Friends" , "religious type" , "Member of the Religious Society of Friends" , "Member of a pacifist sect" .)

I've seen this clue in The Telegraph.
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