Across
- 1. A type of tree with needle-like leaves (6)
- 3. A collection of maps (5)
- 5. Bone in the lower leg (5)
- 7. Capital of Latvia (4)
- 9. A long, adventurous journey (5)
- 11. HOLMES Famous detective created by Arthur Conan Doyle (6,7)
- 13. Shakespearean king with three daughters (4)
- 15. Ancient stringed instrument (4)
- 17. The capital of Norway (4)
- 18. The process of decay in organic matter (9)
- 20. Opposite of zenith (7)
- 21. A type of cloud often associated with thunderstorms (10)
Down
- 2. Study of word origins (8)
- 4. A place where bees are kept (5)
- 6. The longest bone in the human body (6)
- 8. Greek hero of the Trojan War, vulnerable at his heel (7)
- 10. Type of triangle with no equal sides (9)
- 12. Constellation also known as "The Hunter" (5)
- 14. A deep chasm or void (6)
- 16. Mythical bird that rises from ashes (7)
- 17. Large flightless bird native to Africa (6)
- 19. Unit of electrical resistance (3)
