Aid on a hot summer day

I believe the answer is:

fan

(Other definitions for fan that I've seen before include "Keen follower; cooler" , "Ardent admirer" , "Aficionado" , "Manual cooling device - for admirer?" , "Zealot" .)

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.