Across
- 2. Medieval forerunner of Chemistry
- 6. Site of the prime meridian (9)
- 10. A defensive fence of stakes (8)
- 11. Political officer in charge of party discipline (4)
- 13. 2024: The year of the ___ (Chinese horoscope) (6)
- 15. To throw someone out of a window (12)
- 17. Being partly or almost (5)
- 18. Wrong, Incorrect (9)
- 20. Study of time (8)
- 21. Landing site of Apollo 11; Sea of ___ (11)
Down
- 1. South-East Asian Empire of the 12th Century (8)
- 3. Smallest penguin (5)
- 4. Colloquial term for decompression sickness (5)
- 5. Philosophical conundrum; Ship of ___ (7)
- 7. Person dying for a strong belief (6)
- 8. Former name of Ho Chi Minh City (6)
- 9. Greater region of Hobbiton (5)
- 12. between (5)
- 14. Armoured dinosaur known for it's bulbous tail (12)
- 15. Reach into (5)
- 16. Author of the Witcher novels; Andrzej ___ (9)
- 19. Amphibious fish; Mud ___ (7)