Crossword Genius

Sign of agreement (3)

Ross

I believe the answer is:

nod

'sign of agreement' is the definition.
(a nod can indicate agreement)

This is the entire clue.

(Other definitions for nod that I've seen before include "Acknowledge by gesture" , "Indicate agreement (or sleepiness!)" , "Signal with the head" , "Drowse" , "Agree non-verbally" .)

I've seen this clue in the Sydney Morning Herald, The Sun and The Telegraph.
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