ACROSS
1. A tree of the Morus genus or the dark-purple blackberrylike fruit that it bears (8) 5. Type of Italian bread made with olive oil (8) 10. The beginning of dusk (7) 12. Eighth sign of the zodiac, between Libra and Sagittarius (7) 13. Avenue of 14. Regular course of action (7) 15. Mixture of decomposed organic materials (7) 16. Stir up; move energetically (5) 19. Most advanced in age (6) 22. To order or decree (6) 24. Inanimate; lifeless (7) 25. Seed covering or appendage (4) 26. Norse god of thunder (4) 28. Last longer than (7) 30. Deep gorge (6) 33. A vibration felt at the earth's surface (6) 36. Proverb (5) 39. TV controllers (7) 40. Ratify or sanction (7) 41. Local intonation of language (5) 42. Ask (7) 43. In the distant past (4,3) 44. A horse 12 months of age (8) 45. Fish yielding caviar and isinglass (8)
