Swallow one drink (7)

I believe the answer is:

martini

'drink' is the definition.
(I know that Martini is a IBA Official Cocktail)

'swallow one' is the wordplay.
'swallow' becomes 'martin' (martin is a kind of swallow).
'one' becomes 'i' (Roman numeral).
'martin'+'i'='MARTINI'

(Other definitions for martini that I've seen before include "Alternative name for Simone Memmi, pre-Renaissance Italian painter" , "Type of Italian vermouth" , "In glass, one's dry" , "rifle" , "Cocktail made with gin or vodka and vermouth" .)

I've seen this clue in The Sun, the Irish Times (Crosaire), The Guardian, The Telegraph, The Times and The Globe and Mail.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.