Molten rock (4)

I think it could be either:

Which length description are you looking for?:

lava

'molten rock' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for lava that I've seen before include "Emanation from volcano" , "Volcanic discharge" , "Volcanic emanation" , "Molten rock from volcanoes" , "Volcanic outflow" .)

I've seen this clue in The Sun, The Guardian, the Sydney Morning Herald, the Newsday, The Mirror, The Times and the Evening Standard.

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.