Crossword Genius

Nasty hangover? (4)

Ross

I believe the answer is:

smog

(Other definitions for smog that I've seen before include "Fog and smoke mix" , "Industrially polluted air" , "Polluted haze" , "Pollution haze/fog" , "Visible air pollution" .)

I've seen this clue in the LA Times.
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.