Crossword Genius

Turns up for wrap party at The Centre at midnight drunk, in Italy (6)

Ross

I believe the answer is:

grappa

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'italy' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for grappa that I've seen before include "Form of brandy" , "Brandy made from wine press residue" , "Type of brandy" , "Italian brandy distilled from grape lees" , "Spirit distilled from fermented grape remains" .)

I've seen this clue in The Irish Times.
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