1. Blockage
2. Part of a day
3. Smidgen, e.g.
4. "Check this out!"
5. Attack
6. Diminutive
7. May event, for short
8. Hoover's org.
9. PC linkup
10. Bit of work?
11. It's the best, e.g.
12. Continental capital
13. Scottish noble
18. Breezy
21. Letters of credit?
23. Campaign target, so to speak
24. Sixth Jewish month
25. "Cool" amount
26. Drag
27. Sci-fi vehicles
28. It's the best
29. Take a chance
30. Certain mill output
32. Dorm furnishing, perhaps
34. Departed
35. Giving it a go, e.g.
37. Kind of circle
38. Increase, with "up"
40. Lap, in reverse
41. Kind of illusion
43. Discouraging words
44. Crossword buffalo
45. Verdant
46. Fish
47. In a fitting way
49. Peruse
50. Corker
51. Came down
52. Plum variety
53. Coastal raptors
55. Place for sweaters?
56. Hard throw, in baseball
57. Shogun capital