Strategy that involves destroying terracotta? (8,5)

I believe the answer is:

scorched earth

I'm a little stuck... Click here to teach me more about this clue!

'strategy that involves destroying terracotta?' is the definition.
The definition suggests a singular noun which matches the answer.

This is the entire clue.

Can you help me to learn more?

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.