Crossword Genius

When doubled, comment made with a wink (4)

Ross

I believe the answer is:

hint

(Other definitions for hint that I've seen before include "'Slight indication, indirect suggestion (4)'" , "Thin sort of slight indication" , "Imply, suggest" , "Tip-off" , "Piece of advice" .)

I've seen this clue in The New York Times.
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