| Source of toro | 14 |
| Source of toughness | 19 |
| Source of tradition | 19 |
| Source of trans-fatty acids | 27 |
| Source of tricks? | 17 |
| Source of Trojan trouble | 24 |
| Source of trouble | 17 |
| Source of troubles | 18 |
| Source of TV laughs for 30 years | 32 |
| Source of TV revenue | 20 |
| Source of twenties | 18 |
| Source of Ulee's gold | 25 |
| Source of unexpected problems | 29 |
| Source of unforeseen trouble | 28 |
| Source of unrest | 16 |
| Source of urban pride | 21 |
| Source of valuable deposits | 27 |
| Source of vanilla | 17 |
| Source of vegan protein | 23 |
| Source of vegetable protein | 27 |
| Source of venanzite | 19 |
| Source of venison | 17 |
| Source of venom | 15 |
| Source of veritas | 17 |
| Source of very soft wool | 24 |
| Source of vigor | 15 |
| Source of vitamin A | 19 |
| Source of vitamin A (var.) | 26 |
| Source of vitamin C | 19 |
| Source of vitamin D | 19 |
| Source of voltage: Abbr. | 24 |
| Source of warmth | 16 |
| Source of water | 15 |
| Source of water power? | 22 |
| Source of waves at sea | 22 |
| Source of wealth | 16 |
| Source of wealth + source of mozzarella? | 40 |
| Source of wealth on "Dallas" | 38 |
| Source of weather upheaval | 26 |
| Source of widespread devastation | 32 |
| Source of wild laughter? | 24 |
| Source of William the Conqueror's Tower of London stone | 59 |
| Source of wine | 14 |
| Source of wisdom | 16 |
| Source of withdrawal visions | 28 |
| Source of wood for baseball bats | 32 |
| Source of woodchips, often | 26 |
| Source of wool | 14 |
| Source of yellow dye | 20 |
| Source of yoks | 14 |
| Source of zest | 14 |
| Source unknown, as a quote: Abbr. | 33 |
| Source with 600,000 words | 25 |
| Source word | 11 |
| Source words | 12 |
| Source, as of information | 25 |
| Source: Abbr. | 13 |
| Source; origin | 14 |
| Sources | 7 |
| Sources for college funding? | 28 |
| Sources for hogget | 18 |
| Sources for maple syrup | 23 |
| Sources for sauces | 18 |
| Sources for synonyms | 20 |
| Sources in a modern bibliog. | 28 |
| Sources of a 2000 ballot controversy | 36 |
| Sources of a cosmetics oil | 26 |
| Sources of ambiguous answers | 28 |
| Sources of ancient counsel | 26 |
| Sources of announcements, for short | 35 |
| Sources of annoyance | 20 |
| Sources of annoying wind | 24 |
| Sources of archers' bows | 28 |
| Sources of archery bows | 23 |
| Sources of baseball bats | 24 |
| Sources of big pricks | 21 |
| Sources of blue eyes, say | 25 |
| Sources of cabinet wood | 23 |
| Sources of cash | 15 |
| Sources of caviar and isinglass | 31 |
| Sources of chronic annoyance | 28 |
| Sources of cocoa | 16 |
| Sources of coconuts | 19 |
| Sources of college funding? | 27 |
| Sources of comforting heat | 26 |
| Sources of culture | 18 |
| Sources of dates | 16 |
| Sources of Davy Crockett hats | 29 |
| Sources of delight | 18 |
| Sources of distress | 19 |
| Sources of durable wood | 23 |
| Sources of elastic wood | 23 |
| Sources of encomia | 18 |
| Sources of energy | 17 |
| Sources of Eve's leaves | 27 |
| Sources of excitement | 21 |
| Sources of fall color | 21 |
| Sources of fast cash | 20 |
| Sources of feta and ricotta cheese | 34 |
| Sources of fiber | 16 |