Green transparent variety of beryl (7)

I believe the answer is:

emerald

(Other definitions for emerald that I've seen before include "and 13 Across: Poetic name for Ireland" , "Green variety of beryl" , "Green gem" , "Ireland is often called The .......Isle" , "Small size of type, in printing" .)

I've seen this clue in The Mirror.

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.