dart player's competency (9)

I believe the answer is:

precision

(Other definitions for precision that I've seen before include "Accuracy, exactness" , "Exactitude" , "Care" , "Exactness, sharpness" , "Meticulousness" .)

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.