Crossword Genius

After cutting back, champion swallows a liqueur (8)

Ross

I believe the answer is:

advocaat

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

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

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(Other definitions for advocaat that I've seen before include "Liqueur made from eggs, sugar and brandy" , "Liqueur made with raw eggs" , "Egg-based liqueur" , "Liqueur (for lawyers?)" , "Egg and rum drink" .)

I've seen this clue in The Times.
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