1. Plain and unpretentious (6)
4. Keepsake (8)
10. In an unhurried way (9)
11. Radioactive gas (5)
12. Lock (5)
13. Assessment (9)
14. A cut of meat (7)
16. Metal money (4)
19. The shoulder of a road (4)
21. Sweet-talk (7)
24. Listen in (9)
25. Sag (5)
26. Tiny parallel grooves (5)
27. Marked by elaborately complex detail (9)
28. An eating disorder (8)
29. Any of several complex proteins (6)
Down
1. Powerless (8)
2. Dampness (8)
3. Giggle (5)
5. Of the region of Olympia (7)
6. Competent in many areas (9)
7. Naturist (6)
8. Make resentful or angry (6)
9. Stay (6)
15. Exaggerate (9)
17. Active support of an idea or cause (8)
18. Apprentice (8)
20. Cocktail (7)
21. American elk (6)
22. A Japanese woman entertainer (6)
23. Do something to an excessive degree (6)
25. Lower oneself (5)