Complete Clue List
Across
1. Gold bars
4. Alaskan sled dog race
9. "I, Robot" author
10. It celebrated its 40th anniversary in 2017 (4,4)
11. Ms. Farrow
12. "Green Acres" co-star (3,5)
13. The street Big Bird lives on
15. Queen of England, for nine days (4,4,4)
18. Steinbeck story about George and Lennie (2,4,3,3)
21. Pele's sport
22. Epoch from 5 to 2 million years ago
23. Astronaut Grissom
24. 1949 Tracy/Hepburn film (5,3)
25. Don't give in
26. Might be heard under a balcony
27. Lifework
Down
1. Columbus's sponsor
2. Ruling house of Monaco
3. Third U.S. president (6,9)
5. Computer input
6. "Mack the knife" musical (5,5,5)
7. U.S. president nicknamed "Dutch"
8. Walt, who created Mickey
10. Knight's title
11. Dudley Do-Right was one
14. "The Time Machine" author (1,1,5)
16. Numbskull
17. Forerunner
19. School papers
20. Bakery treat
22. Drinking establishment
23. Adorn unnecessarily