Cryptic crossword No 3,557

906 - Par at Augusta - also available at https://ibendr.github.io/xwd/bendr/index.html along with over 500 more

It helps that there aren't many countries of 5,6; I found two (with the same first letters, curiously enough). As someone unfamiliar with the theme, I found this very nicely pitched; my last in was 3d but with the crossers I was able to identify it as a likely name.