| Naturalness | 11 |
| Naturally-lit room | 18 |
| Naturally-lit living space | 26 |
| Naturally water-resistant wood | 30 |
| Naturally spoken | 16 |
| Naturally sluggish | 18 |
| Naturally occurring chipped stone | 33 |
| Naturally lit courtyard | 23 |
| Naturally inherent | 18 |
| Naturally inclined (to) | 23 |
| Naturally illuminated, in a way | 31 |
| Naturally illuminated | 21 |
| Naturally fitted for | 20 |
| Naturally disposed toward | 25 |
| Naturally curly hairdo | 22 |
| Naturally concerned? | 20 |
| Naturally competitive | 21 |
| Naturally bright? | 17 |
| Naturally bright | 16 |
| Naturally brewed beverage | 25 |
| Naturally belong | 16 |
| Naturalize | 10 |
| Naturalist/TV host Steve | 24 |
| Naturalist's subj. | 22 |
| Naturalist's response to pharmaceuticals | 44 |
| Naturalist who coined the term "invertebrate" | 55 |
| Naturalist who can explain this theme | 37 |
| Naturalist who appears on the California quarter | 48 |
| Naturalist Seton | 16 |
| Naturalist Roger ___ Peterson | 29 |
| Naturalist on California's state quarter | 44 |
| Naturalist on California quarters | 33 |
| Naturalist Johnson | 18 |
| Naturalist John: 1838–1914 | 33 |
| Naturalist John's family | 28 |
| Naturalist John et al. | 22 |
| Naturalist John | 15 |
| Naturalist from southern Louisiana? | 35 |
| Naturalist Fossey et al. | 24 |
| Naturalist Fossey | 17 |
| Naturalist Ernest T. | 20 |
| Naturalist Edwin Way ___ | 24 |
| Naturalist Comstock | 19 |
| Naturalist Charles | 18 |
| Naturalist Adams | 16 |
| Natural-history museum attraction | 33 |
| Natural-gas components | 22 |
| Natural-gas component | 21 |
| Natural-childbirth proponent Fernand | 36 |
| Natural, in '70s lingo | 26 |
| Natural, at Reno | 16 |
| Natural, as talent | 18 |
| Natural ____ | 12 |
| Natural ___ (subject of "fracking" in 2012) | 53 |
| Natural ___ | 11 |
| Natural __ | 10 |
| Natural wound cover | 19 |
| Natural wisdom | 14 |
| Natural weapons | 15 |
| Natural wave catcher | 20 |
| Natural water sources | 21 |
| Natural water source | 20 |
| Natural water jet | 17 |
| Natural vitamin store supplement that some may doubly avoid? | 60 |
| Natural viewpoint | 17 |
| Natural viewing height | 22 |
| Natural UV filter | 17 |
| Natural unpredictability | 24 |
| Natural universe | 16 |
| Natural tunnel creator | 22 |
| Natural trench | 14 |
| Natural treatment | 17 |
| Natural trap | 12 |
| Natural topical treatment | 25 |
| Natural to a region | 19 |
| Natural to a creature | 21 |
| Natural tint source | 19 |
| Natural timekeeper, of a sort | 29 |
| Natural tanner | 14 |
| Natural talent[For the explanation of last week's theme, see the last Down clue] | 84 |
| Natural talents | 15 |
| Natural talent | 14 |
| Natural table | 13 |
| Natural sweetener | 17 |
| Natural survivor | 16 |
| Natural sunscreen? | 18 |
| Natural sun screen? | 19 |
| Natural sun blockers | 20 |
| Natural sugar | 13 |
| Natural successors | 18 |
| Natural successor | 17 |
| Natural substances | 18 |
| Natural sticker | 15 |
| Natural steam source | 20 |
| Natural springs | 15 |
| Natural spring | 14 |
| Natural sponge | 14 |
| Natural sparkler | 16 |
| Natural source? | 15 |
| Natural source of a Massachusetts dairy product? | 48 |