Major destruction (10)

I believe the answer is:

apocalypse

(Other definitions for apocalypse that I've seen before include "Revelation" , "Catastrophic event" , "sacred book" , "This last book" , "the last item" .)

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.