Merchant gives you a hand (6)

I believe the answer is:

dealer

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'merchant' is the definition.
(dealer is a kind of merchant)

I can't explain the remainder of the clue.

(Other definitions for dealer that I've seen before include "Merchant" , "One who trades, perhaps on stock exchange" , "Trader; issuer of hands" , "Trader - distributor of cards" , "Trader as on Stock Exchange" .)

I've seen this clue in The Mirror.

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