Worry about the small stuff (5)

I believe the answer is:

sweat

(Other definitions for sweat that I've seen before include "Waste (anag.)" , "(Of argument) intense" , "It's hard work" , "Soldier" , "Toil" .)

I've seen this clue in The Washington Post.

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.