Across
1. Frogman
6. Ball-shaped artifacts
13. Embrocate
14. Unpleasantly loud and harsh
15. Paintings of a naked human figure
16. System of belief based on mystical insight into the nature of God and the soul
17. Excursion
18. Brown and yellow European finches
19. "2001" computer
20. Charming
22. Coastal raptor
23. Alerts
24. Dead-on
25. Bag
26. Dense growth of bushes
27. Clean one's body
28. Rolled
29. Short-tailed, rough-haired South American rodent
30. Era
31. Madison Square Garden, e.g.
32. Important person in India
33. One teaspoon, maybe
34. Pseudonyms of actors
38. "Go on ..."
39. Discouraged
40. Bakery buy
41. Little different
43. Skin problem
44. Self-aggrandizements
45. Yank
46. Lays at rest
47. Related maternally

Down
1. "La vita nuova" poet
2. Bury
3. Relating to the Vedas
4. Gargantuan
5. ___ publica
6. Beer holders
7. Antler point
8. Blow off steam?
9. Tokyo, formerly
10. Reworded
11. Touched up
12. Daggers
14. Edible decapod crustaceans
16. Bright fish
18. Gets game
21. Tennis great Gibson
22. Travel for the purpose of discovery
24. Member of one of four linguistic divisions of the prehistoric Greeks
25. Listen without the speaker's knowledge
26. Asked for ID
27. Peers of a kingdom considered as a group
28. Port city in southwestern Norway
29. Corpse
30. Some bar features
32. Peels
34. "Socrate" composer
35. Craze
36. At attention
37. Investment
39. "Star ___"
42. Yamaguchi's rival at Albertville
43. Not just "a"