1. The length of time something has existed
4. Faucet
7. Having superficial plausibility
10. Arbiter
11. Utilize
12. Be obliged to repay
13. Sprite or imp
14. Young women's association
15. Males
16. The very being
19. The rate of moving (especially walking or running)
21. Billowed
24. The area of a house just under the roof
26. Earth
27. Harnessed
29. Decagrams
30. Meat from a deer
32. No (Scottish)
34. A very large body of water
35. Express pleasure
38. A quantity of no importance
39. Encourage
40. Figure
41. Humorous in a shrewd impersonal or sarcastic way
42. Having a grainy texture
43. Town in Cambridgeshire
2. A colloid is a more solid form than a sol
3. Actual
4. Small powerful boats
5. Hind ends
6. Underground pod of a leguminous vine
7. Large globular fruit having many seeds with juicy red pulp in a tough red rind
9. Large integer
17. Net
18. Doctrine
19. Score
20. Fed
22. Work unit
23. Hyrax
28. __ Rivera, Mexican artist
31. Having wisdom that comes with age and experience
32. The compass point that is midway between north and northwest
33. The space above the ground
36. Pointed leatherwork tool
37. With flat bottom for carrying heavy loads