| Source with 600,000 words | 25 |
| Source unknown, as a quote: Abbr. | 33 |
| Source of zest | 14 |
| Source of yoks | 14 |
| Source of yellow dye | 20 |
| Source of wool | 14 |
| Source of woodchips, often | 26 |
| Source of wood for baseball bats | 32 |
| Source of withdrawal visions | 28 |
| Source of wisdom | 16 |
| Source of wine | 14 |
| Source of William the Conqueror's Tower of London stone | 59 |
| Source of wild laughter? | 24 |
| Source of widespread devastation | 32 |
| Source of weather upheaval | 26 |
| Source of wealth on "Dallas" | 38 |
| Source of wealth + source of mozzarella? | 40 |
| Source of wealth | 16 |
| Source of waves at sea | 22 |
| Source of water power? | 22 |
| Source of water | 15 |
| Source of warmth | 16 |
| Source of voltage: Abbr. | 24 |
| Source of vitamin D | 19 |
| Source of vitamin C | 19 |
| Source of vitamin A (var.) | 26 |
| Source of vitamin A | 19 |
| Source of vigor | 15 |
| Source of very soft wool | 24 |
| Source of veritas | 17 |
| Source of venom | 15 |
| Source of venison | 17 |
| Source of venanzite | 19 |
| Source of vegetable protein | 27 |
| Source of vegan protein | 23 |
| Source of vanilla | 17 |
| Source of valuable deposits | 27 |
| Source of urban pride | 21 |
| Source of unrest | 16 |
| Source of unforeseen trouble | 28 |
| Source of unexpected problems | 29 |
| Source of Ulee's gold | 25 |
| Source of twenties | 18 |
| Source of TV revenue | 20 |
| Source of TV laughs for 30 years | 32 |
| Source of troubles | 18 |
| Source of trouble | 17 |
| Source of Trojan trouble | 24 |
| Source of tricks? | 17 |
| Source of trans-fatty acids | 27 |
| Source of tradition | 19 |
| Source of toughness | 19 |
| Source of toro | 14 |
| Source of Toothflix DVDs | 24 |
| Source of tomorrow's lunch, perhaps | 39 |
| Source of tofu | 14 |
| Source of ticking | 17 |
| Source of thorns | 16 |
| Source of this puzzle's theme | 33 |
| Source of this puzzle's quip | 32 |
| Source of the words "zenith" and "nadir" | 60 |
| Source of the words "mulligatawny" and "catamaran" | 70 |
| Source of the words "mamba" and "chimpanzee" | 64 |
| Source of the word "trousers" | 39 |
| Source of the word "robot" | 36 |
| Source of the word "mantra" | 37 |
| Source of the word "karma" | 36 |
| Source of the word "galore" | 37 |
| Source of the word "clan" | 35 |
| Source of the word "bandanna" | 39 |
| Source of the word "avatar" | 37 |
| Source of the word "alcohol" | 38 |
| Source of the word "admiral" | 38 |
| Source of the word ''algebra'' | 46 |
| Source of the Truckee River | 27 |
| Source of the title material in "Weird Al" Yankovic's "The White Stuff" | 95 |
| Source of the stepquote, with "The" | 45 |
| Source of the song "The Hostess With the Mostes' on the Ball" | 75 |
| Source of the saying "The gods help them that help themselves" | 72 |
| Source of the saying "Brevity is the soul of wit" | 59 |
| Source of the sample in Jay-Z's "Hard Knock Life (Ghetto Anthem)" | 79 |
| Source of the Romance languages | 31 |
| Source of the Rhodes Scholarship endowment | 42 |
| Source of the quote, with "The" | 41 |
| Source of the quote | 19 |
| Source of the quotation | 23 |
| Source of the quip | 18 |
| Source of the phrases "cakes and ale" and "milk of human kindness": Abbr. | 93 |
| Source of the phrase "pomp and circumstance" | 54 |
| Source of the phrase "brave new world," with "The" | 70 |
| Source of the Owl Creek? | 24 |
| Source of the outbursts (and hit comedy of 1993) | 48 |
| Source of the one-liner | 23 |
| Source of the Nile | 18 |
| Source of the Niagara River | 27 |
| Source of the Niagara | 21 |
| Source of the music for a 2001 theatrical hit | 45 |
| Source of the most widely used metal | 36 |
| Source of the mondegreen "Sunday monkey won't play piano song" | 76 |
| Source of the Mississippi | 25 |