1. Beast of burden
2. Sign of summer?
3. Roman breakfast of yore
4. Atop, poetically
5. Kitchen fixtures
6. British actress Samantha
7. Author Roald
8. Auspices
9. A "Little Women" woman
10. BBQ residue
11. Go American, say
12. It's often wild, e.g.
13. Focused
18. Call for
21. Shad spawn
22. Rocky debris
23. Hideouts
24. Sky high, e.g.
25. Denials
26. They deliver?
27. Anagram of a British brew
29. Groom
30. Promising, in a way
32. African lily
34. Duck down?
35. Some hair
37. Droids
38. Stream blocker
40. Cookie sellers' org.
41. Cheer
43. Time period
44. Gab
45. Be bombastic
46. Back biter?
47. Digger
49. Deception
50. Echoes
52. ET transport
53. Stop on a crawl, e.g.
54. Old Roman greeting
55. Hostilities
56. Supplement
57. Word of agreement