1. The "p" in m.p.g.
2. Detergent choice, perhaps
3. Sajak, for one
4. Pressure measure
5. Naval officers
6. À la King?
7. No longer in force
8. Redding of song
9. Show ender?
10. Pea jacket?
11. Use your head
12. Critical
13. Drum major's prop
18. Olden ointment
22. UN worker's grp.
23. Actress Oberon
24. Adage
25. Use your head
26. Chitchat
27. Aspersion
29. Birch relative
30. Big pig
32. Hamster's home, perhaps
34. Walkway
35. Shade of gray
37. Badger, in a way
38. The end of Oktober?
40. Ballyhoo
43. Put away the groceries?
44. Next in line, so to speak
45. Anxiety
46. Part-time ermine?
47. Island nation east of Fiji
48. Inexperienced
50. Before long
51. Corm of the taro
54. It needs refining
55. Impede, with "down"
56. Belonging to us
57. Take advantage of
58. Bit of body art