At half a kopeck, it's high! (3)

I believe the answer is:

kop

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Other definitions for kop that I've seen before include "football terraces" , "High football terrace" , "Football stand" .)

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.