| It may have a window: Abbr. | 27 |
| Resent another's ascent | 27 |
| Jealousy without resentment | 27 |
| New Age singer from Ireland | 27 |
| Single-named New Age singer | 27 |
| One-named Irish folk singer | 27 |
| New Age singer from Donegal | 27 |
| Grammy-winning Irish singer | 27 |
| Italian car magnate Ferrari | 27 |
| Car company founder Ferrari | 27 |
| Substance essential to life | 27 |
| Epoch when mammals appeared | 27 |
| Classified letters, perhaps | 27 |
| Letters in a help wanted ad | 27 |
| Extremely long unit of time | 27 |
| Long geologic time division | 27 |
| It's longer than an era | 27 |
| Division of geological time | 27 |
| A billion years, in geology | 27 |
| Two or more geological eras | 27 |
| Really long geological time | 27 |
| One hundred million decades | 27 |
| Largest geological division | 27 |
| Geologist's time period | 27 |
| Incalculable amount of time | 27 |
| A kazillion years, it seems | 27 |
| Unimaginably long stretches | 27 |
| Extremely long time periods | 27 |
| Sister of Helios and Selene | 27 |
| Greek counterpart of Aurora | 27 |
| Canon autofocus film system | 27 |
| Agcy. involved with cleanup | 27 |
| Gp. with emission standards | 27 |
| Air-quality monitoring org. | 27 |
| Watcher of the skies: abbr. | 27 |
| UV index monitor, for short | 27 |
| Org. in a war against grime | 27 |
| Environmentalists' org. | 27 |
| Energy Star program creator | 27 |
| Air quality monitor (abbr.) | 27 |
| Agency concerned with ecol. | 27 |
| Agcy. watching over ecology | 27 |
| Officer's embellishment | 27 |
| Lake Buena Vista attraction | 27 |
| Florida tourist destination | 27 |
| Theme park with a geosphere | 27 |
| Spaceship Earth is its icon | 27 |
| Park with a geodesic sphere | 27 |
| "En garde" weapon | 27 |
| Inventor of a sign language | 27 |
| It'll keep you on guard | 27 |
| Sport scored electronically | 27 |
| Weapon with a duel purpose? | 27 |
| Sword you score points with | 27 |
| Salle d'armes implement | 27 |
| Players wear masks for this | 27 |
| Hardly a cutting-edge sport | 27 |
| "One-touch" sport | 27 |
| "One touch" sport | 27 |
| Virtually pointless weapons | 27 |
| Modern pentathlon equipment | 27 |
| They have cup-shaped guards | 27 |
| Their tips are well-guarded | 27 |
| Swords used in the Olympics | 27 |
| Swords that don't stick | 27 |
| Sabers' less lethal kin | 27 |
| Aluminum foil alternatives? | 27 |
| Book after Galatians: Abbr. | 27 |
| Book between Gal. and Phil. | 27 |
| Letter from St. Paul: Abbr. | 27 |
| Book after Galatians Abbr.: | 27 |
| Prefix with center or cycle | 27 |
| Prefix with center or lady? | 27 |
| Prefix with graph or center | 27 |
| Prefix with glottis or gram | 27 |
| Predecessor of cure or tome | 27 |
| Front to "center" | 27 |
| The "Iliad," e.g. | 27 |
| "Star Wars," e.g. | 27 |
| Faith No More's big hit | 27 |
| Michael Jackson's label | 27 |
| Like amazing show, slangily | 27 |
| Impressive in size or scope | 27 |
| "Spartacus," e.g. | 27 |
| "Quo Vadis," e.g. | 27 |
| "Gandhi," for one | 27 |
| "Ben-Hur" for one | 27 |
| One with good taste in food | 27 |
| Some Michelin Guide readers | 27 |
| Restaurant critics, perhaps | 27 |
| The Great and the Fat, e.g. | 27 |
| Important historical period | 27 |
| Distinct periods of history | 27 |
| Horace's form, at times | 27 |
| Columbus, to Colombia, e.g. | 27 |
| "The Iliad," e.g. | 27 |
| Primitive poetry collection | 27 |
| "Gilgamesh," e.g. | 27 |
| They're longer than 45s | 27 |
| They may include club mixes | 27 |