The act of trying hard (6)

I believe the answer is:

effort

(Other definitions for effort that I've seen before include "Try - exertion" , "Attempt, energy exerted" , "Try - labour - pains" , "Vigorous attempt" , "Energy exerted to achieve something" .)

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.