Optical illusions in hot places (7)

I believe the answer is:

mirages

'optical illusions in hot places' is the definition.
(I've seen this before)

This is the entire clue.

(Another definition for mirages that I've seen is " Optical illusions in hot places".)

I've seen this clue in The Irish 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.