Nonalcoholic option at a Halloween party (4)

I believe the answer is:

soda

(Other definitions for soda that I've seen before include "Sodium carbonate" , "Alkaline substance used in cleaning, drinks etc" , "Fizzy water, goes well with whiskey" , "Whisky mixer" , "kind of water" .)

I've seen this clue in The Washington Post.

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.