Crossword Genius

The very thing described by first appearances of Man Tipping Hand (4)

Ross

I believe the answer is:

mitt

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'hand' is the definition.
('mitt' can be a synonym of 'hand')

I don't understand how the rest of the clue works.

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(Another definition for mitt that I've seen is " Baseball glove".)

I've seen this clue in The Independent.
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