Jumbo jet? (6)

I believe the answer is:

geyser

(Other definitions for geyser that I've seen before include "one named Old Faithful" , "Gas-fired water heater" , "Spring spouting steam and hot water" , "Spring that discharges steam and hot water" , "Spring spurting hot water upwards" .)

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.