Sparkling Italian wine (4)

I think it could be either:

Which length description are you looking for?:

asti

'sparkling italian wine' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for asti that I've seen before include "Italian drunk" , "town in Italy" , "- spumante, It. wine" , "18" , "Italian town, famous for its wine" .)

I've seen this clue in The Times, The Telegraph, the L.A. Times Daily, The Sun, the King Feature Syndicate, the Universal, The Washington Post and the New York Times.

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