Tap, as an app (4)

I believe the answer is:

open

(Other definitions for open that I've seen before include "Willing" , "Without concealment" , "Freely accessible" , "Sports contest" , "begin to > crack" .)

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.