Crossword Genius

Traded blows? (5)

Ross

I believe the answer is:

dealt

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'traded' is the definition.
(I've seen this before)

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

Can you help me to learn more?

(Other definitions for dealt that I've seen before include "Doled out" , "Gave out playing cards" , "Dispensed (cards)" , "Delivered" , "Distributed playing cards" .)

I've seen this clue in the Evening Standard.
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