Verges on silly, drinking X drink (6)

I believe the answer is:

shandy

I'm a little stuck... Click here to teach me more about this clue!

'drink' is the definition.
(I know that shandy is a type of drink)

I don't understand how the rest of the clue works.

(Other definitions for shandy that I've seen before include "Light beer" , "mixed drink" , "Drink made of beer and lemonade" , "Alcohol" , "Beer/lemonade mixture" .)

I've seen this clue in the Sydney Morning Herald.

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.