Complete Clue List
Across
1. They're full of hot air (6)
4. Reason to celebrate (8)
10. Contract, though not part of 8D (7)
11. Alfresco (4-3)
12. At a loss for words (9)
13. March marchers (5)
14. Highly seasoned Mexican dish of meat, onions and beans in a tomato sauce (var., 6,3,5)
17. Slot machine used for gambling (3-5,6)
21. Sales spiel (5)
22. Improving (9)
24. Air cells in the lung (7)
25. Appealing to feeling (7)
26. Future funds (4,4)
27. Responsibilities (6)
Down
1. Way to go (8)
2. Nazareth native (7)
3. Fix firmly (5)
5. Secretive (5-3-6)
6. Things specific to the culture and people of the United States (9)
7. Roman resident (7)
8. Bridge positions (6)
9. Shared resources provided on demand using the internet (5,9)
15. Repulsive (9)
16. Astonishes (8)
18. Longtime locals (7)
19. Newspapers (7)
20. Unwanted twist (6)
23. Squirrelly snack (5)