What one might use to lash out? (7)

I believe the answer is:

mascara

(Other definitions for mascara that I've seen before include "Cosmetic for the eyes" , "facial cosmetic" , "black application" , "Makeup used to darken and thicken the eye lashes" , "Cosmetic for darkening the eyelashes" .)

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.