Complete Clue List
Across
1. Monotonous hum
4. Vader of "Star Wars"
7. 7th Greek letter
8. Dismayed or overturned
9. Explosive, in short
10. A rodent like Splinter
11. Sew loosely
14. Moral code
17. Coins
20. Antarctic explorer
23. Up to, briefly
24. Later
25. Solemn vows
26. Play part
27. Mouth-watering
28. Injures
Down
1. Opposable digit
2. Oxidises
3. Metric measurement (UK spelling)
4. "The Divine Comedy" poet
5. Dry heave
6. Owl noises
12. Consumed
13. Make lace
15. Spasm
16. Umpire's call
17. Trade
18. Jottings
19. Wander off
20. Slow-moving tree-dweller
21. Playful aquatic mammal
22. Long elephant teeth