Cocktail of gin or vodka and vermouth (7)
I believe the answer is:
martini
'cocktail of gin or vodka and vermouth' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for martini that I've seen before include "Gin or vodka with dry vermouth" , "Cocktail made with gin or vodka and vermouth" , "obtained from a bottle" , "Cocktail of gin and dry vermouth" , "James Bond's drink of choice" .)