It doesn't stay hot for long (3)

I believe the answer is:

fad

(Other definitions for fad that I've seen before include "Craze; idiosyncrasy" , "Passing craze or peculiar notion" , "transient success" , "Passing vogue or fashion" , "Short-lived craze" .)

I've seen this clue in The New York 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.