Complete Clue List
Across
1. Imbecile (5)
4. Orchestral output (5)
7. Pressure outlet (6,5)
9. Behold (3)
10. Soft mineral (4)
12. Regarding (2,2)
13. City in central Switzerland (7)
14. Gorbachev was its last leader (init., 4)
15. Ketch kin (4)
17. U.S. air traffic org. (init., 3)
19. Subscribers (7,4)
20. Time to retire (5)
21. Scoundrel (5)
Down
1. Map within a map (5)
2. Operating at capacity (2,4,5)
3. Rug rats (4)
4. Budge (4)
5. Envelope-type closed just with pressure (4-7)
6. Words to live by (5)
8. Armenia's capital (7)
11. Surly sort (3)
12. One or more (3)
14. Deprive of courage (5)
16. Turning tool (5)
17. Italian carmaker (4)
18. Seaweed substance (4)