1. The state of needing something that is absent or unavailable.
5. A loose sleeveless outer garment made from aba cloth.
8. System of measurement based on centimeters and grams and seconds.
11. English essayist (1775-1834).
12. A flexible container with a single opening.
13. Goddess of the dead and queen of the underworld.
14. A radioactive element of the actinide series.
15. Informal terms for a mother.
17. An esoteric or occult matter that is traditionally secret.
19. A river of southwestern Africa that rises in central Angola and flows east and then north (forming part of the border between Angola and Congo) and continuing northwest through Congo to empty into the Congo River on the border between Congo and Republic of the Congo.
21. A television system that has more than the usual number of lines per frame so its pictures show more detail.
22. A doctor's degree in religion.
24. Someone who works (or provides workers) during a strike.
28. A Chadic language spoken south of Lake Chad.
30. (informal) Exceptionally good.
35. The capital and largest city of Yemen.
38. A sheet or band of fibrous connective tissue separating or binding together muscles and organs etc.
40. A constellation in the southern hemisphere near Telescopium and Norma.
41. A plant hormone promoting elongation of stems and roots.
44. Any of various small biting flies.
45. Light informal conversation for social occasions.
46. The bill in a restaurant.
47. Being here now.
48. A Kwa language spoken by the Yoruba people in southwestern Nigeria.
49. Electrical conduction through a gas in an applied electric field.
50. (Babylonian) God of storms and wind.
51. A soft silvery metallic element of the alkali earth group.

1. An accidental hole that allows something (fluid or light etc.) to enter or escape.
2. Type genus of the Alcidae comprising solely the razorbill.
3. Being one more than one hundred.
4. God of love and erotic desire.
5. The blood group whose red cells carry both the A and B antigens.
6. German organist and contrapuntist (1685-1750).
7. Title for a civil or military leader (especially in Turkey).
8. A cloth used as a head covering (and veil and shawl) by Muslim and Hindu women.
9. Informal terms for money.
10. Speaking a Slavic language.
16. A resource.
18. God of wealth and love.
20. Singing jazz.
23. Having undesirable or negative qualities.
25. A white metallic element that burns with a brilliant light.
26. A small cake leavened with yeast.
27. An angular shape characterized by sharp turns in alternating directions.
29. An official prosecutor for a judicial district.
31. An Indian side dish of yogurt and chopped cucumbers and spices.
32. (of complexion) Blemished by imperfections of the skin.
33. A crown-like jewelled headdress worn by women on formal occasions.
34. Mated sexually.
36. Any of various strong liquors distilled from the fermented sap of toddy palms or from fermented molasses.
37. (Babylonian) God of wisdom and agriculture and patron of scribes and schools.
39. Title for a civil or military leader (especially in Turkey).
42. A river in north central Switzerland that runs northeast into the Rhine.
43. The elementary stages of any subject (usually plural).