1. A national monument in Arizona: Organ Pipe Cactus National Monument
2. A town on the Navajo Nation reservation in Arizona: Tuba City
3. Champagne glasses: Flutes
4. Gale Sayers' teammate who died of cancer: Brian Piccolo
5. A device to slice vegetables: Mandoline
6. The 1988 American League Cy Young Award Winner: Frank Viola
7. The 1982 National League Rookie of the Year Award Winner: Steve Sax
8. An Irish beer: Harp
9. Corkscrew-shaped pastries filled with white frosting, open at both ends: Cream Horns (or, in Pittsburgh, Lady Locks)
10. Its subtitle is "Seven Negro Sermons In Verse" by James Weldon Johnson: "God's Trombones"
11. A timepiece with a round face, a relatively narrow elongated case, and a rectangular box at the bottom: Banjo clock
12. The Becky's Island Music Trivia Mascot: Bongos!
13. Edible ferns: Fiddleheads
14. He played guard on the Indiana University basketball team, graduating in 2002: Dane Fife
15. E. B. White's story of Louis the bird in the Boston Public Garden: "The Trumpet of the Swan"
16. Chuck Barris presided over the mayhem every day on this 70s show: The Gong Show
17. A 1939 movie starring Henry Fonda and Claudette Colbert: Drums Along the Mohawk

Bonus: Permanent folds of equal width in alternating opposite directions made in fabric, paper, or other material: Accordion pleats