Marching Orders

Answers to Down clues proceed normally within their columns in the diagram, but answers to Across clues march to a different drummer: in their shaded areas they obey the command spelled out by the unclued phrase at 21 Across. Seven clue answers are capitalized.

See the solution to last month's Puzzler.

Clues

Previous Puzzlers:

"Step by Step"
February, 1998

"Celebrating the First"
January, 1998

"Cryptacrostic"
December, 1997

"Chessboard"
November, 1997

"Haunted House"
October, 1997

"Double-Crossers"
September, 1997

"Scoreboard"
August, 1997

"Celebrating the Fourth"
July, 1997

"Fortune Cookies"
June, 1997

"Slide Show"
May, 1997

Across
1. Committee's leader out of formation in a march (8)
7. Instrument about right for members of a marching band (5)
11. Island in the Malay Archipelago stood out (6)
12. In real-estate document, "rent" is crossed out (7)
13. Heckles British actor in speech (5)
15. Hanging a troublemaker in experiment (8)
16. Activates top agency collecting taxes (7)
18. Notice Doctor Hook providing speech (7)
20. Learned volume by England's leader (8)
25. A hot line reviewed in an operetta (8)
30. Second-rate, as in Mexican food and hot sauce (7)
32. Man's relatives turned mean in crimes (7)
33. Chuck embraces Indonesian island cult member (8)
34. Poet mostly worked backwards (5)
35. Works in Stone Station before Tuesday (7)
36. Fenced ranchland initially was in bad shape (6)
37. Poetry in lovers' eyes (5)
38. Bravest Indians caught by small child (8)

Down
1. Audited one after another apprentice (6)
2. Song finale about leaver of a labyrinthine clue (7)
3. Said mobs reserved supplies (6)
4. In back, the lady cut a second time (7)
5. Bits of dust in ditches filled with water from the sound (5)
6. Heartless note by writer with the cure for the blues (8)
7. Grace Pound is hugged by Mrs. Truman (5)
8. Saw-toothed rodent with withered exterior (7)
9. Warlike king landed upside-down after a tumble on the head? (6)
10. Something very sticky gets inside support for boot again (7)
14. Dazzlers of gold acquired by live bands (8)
17. Pay for extension in call (5,3)
19. Spot location in the ear (5)
20. Recitations of stories about one sun (8)
21. Los Angeles flight in return loops? (7)
22. Leave enemy, having turned tail (7)
23. Bill Field, on "upper-class" scene (7)
24. Shortstop and I getting into line that can be split (7)
26. Latin rumba dislocated a vertebra (6)
27. Cleveland's center chose wrong rebounds (6)
28. Using fuel, illuminated General Assembly opening (6)
29. Treasure you finally buried in lowland (5)
31. Capless, the top Cuban baseball player (5)