Crossword Genius

Produced by an eruption of subterranean matter (8)

Ross

I believe the answer is:

volcanic

(Other definitions for volcanic that I've seen before include "Like pumice" , "Describing lava?" , "Relating to fissures which produce lava" , "Like lava, perhaps" , "Relating to eruption in earth's surface" .)

I've seen this clue in the Sydney Morning Herald.
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.