Vodka and tomato juice (6,4)
I believe the answer is:
bloody mary
'vodka and tomato juice' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for bloody mary that I've seen before include "killing Queen?" , "Tomato juice and vodka" , "it could be an eye-opener" , "something to drink" , "The Red Queen" .)