Across
- 4. undergraduate too hot in south west city (4)
- 6. Deceased corvid teeming with maggots. (7)
- 8. Boiling angry rabbit eats bread (3,5,3)
- 12. educated young woman's shout is not answered (6, 4)
- 13. modern day chant to ward off evil, also a taxi (1,1,1,1)
- 15. a leg of lamb is a strong fortification (8)
- 17. I will defend animals endlessly (8)
- 18. Approving of yub nub, song for Ewok planet (9)
- 20. A mile begins with small grin (5)
Down
- 1. geological formation is the highest form of flattery (7)
- 2. double agent screams at hydrogen (3)
- 3. dracula with gin cocktail? Sounds like a good sleep (8, 5)
- 5. high flyer is part of lab room stickup (10)
- 7. slender monarch ponders (8)
- 9. old one is upset by head (6)
- 10. sausage is made of rocky body parts (9)
- 11. Famous Catherine of Italy finds her remedy in the northeast (8)
- 14. Time is in charge over and over again (7)
- 16. Anti-Communist spy, weaver of a web of lies (6)
- 19. partly seated in nervous dining situation (6)