Bowler's aim (3)

I believe the answer is:

(Other definitions for pin that I've seen before include "Needle" , "Skittle; chess attack" , "leg" , "form of identification" , "Fasten; a security code" .)

I've seen this clue in the Penny Press.

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.