Insect with the right drink (4)
I believe the answer is:
blue
This clue is a triple definition!
'insect' is the first definition.
(blue is a kind of insect)
'with' acts as a link.
'the right' is the second definition.
(colour of the right-wing Conservative Party)
'drink' is the third definition.
(I know that Blue is a type of drink)
(Other definitions for blue that I've seen before include "Sea colour" , "This could be royal or navy" , "Oxbridge player" , "Miserable - cerulean" , "Indecent" .)