| Sine qua __ | 11 |
| Sine qua nons | 13 |
| Sine qua non when up the creek | 30 |
| Sine qua non for certain duets | 30 |
| Sine qua non for an athlete | 27 |
| Sine qua non at an afternoon affair | 35 |
| Sine qua non e.g. | 18 |
| Sine qua non | 12 |
| Sine qua -- | 11 |
| Sine or tangent, e.g. | 21 |
| Sine or secant | 14 |
| Sine or cosine, say | 19 |
| Sine or cosine, e.g. | 20 |
| Sine or cosine | 14 |
| Sine of 30° | 14 |
| Sine language? | 14 |
| Sine field | 10 |
| Sine die | 8 |
| Sine and cosine, for two | 24 |
| Sine and cosine, e.g. | 21 |
| Sine and cosine | 15 |
| Sine --- non | 12 |
| Sine -- non | 11 |
| Sindbad's flier | 19 |
| Sindbad's bird | 18 |
| Sindbad locale | 14 |
| Sindbad hid behind its egg | 26 |
| Sinclair's Street | 21 |
| Sinclair's "World's ___" | 42 |
| Sinclair with a Pulitzer | 24 |
| Sinclair whose work inspired "There Will Be Blood" | 60 |
| Sinclair who wrote "The Jungle" | 41 |
| Sinclair rival, once | 20 |
| Sinclair rival | 14 |
| Sinclair Pulitzer-winner | 24 |
| Sinclair Oil rival | 18 |
| Sinclair Lewis's ___ Timberlane | 35 |
| Sinclair Lewis's Sauk ___ | 29 |
| Sinclair Lewis's Pulitzer novel | 35 |
| Sinclair Lewis's nickname | 29 |
| Sinclair Lewis's Judge Timberlane | 37 |
| Sinclair Lewis's Gantry | 27 |
| Sinclair Lewis's "___ Vickers" | 44 |
| Sinclair Lewis's "___ Mr. Wrenn" | 46 |
| Sinclair Lewis's "__ Gantry" | 42 |
| Sinclair Lewis' Judge Timberlane | 36 |
| Sinclair Lewis' Elmer | 25 |
| Sinclair Lewis' "__ Gantry" | 41 |
| Sinclair Lewis was the first American writer to win one | 55 |
| Sinclair Lewis title character | 30 |
| Sinclair Lewis title | 20 |
| Sinclair Lewis novel "___ Mr. Wrenn" | 46 |
| Sinclair Lewis novel | 20 |
| Sinclair Lewis nickname | 23 |
| Sinclair Lewis heroine | 22 |
| Sinclair Lewis doctor | 21 |
| Sinclair Lewis died here | 24 |
| Sinclair Lewis character | 24 |
| Sinclair Lewis book | 19 |
| Sinclair Lewis best-seller | 26 |
| Sinclair Lewis "Street" | 33 |
| Sinclair in "Coming To America" | 41 |
| Sinclair contemporary | 21 |
| Sinclair alternative | 20 |
| Sinclair | 8 |
| Sincerity, as displayed by Hemingway? | 37 |
| Sincerity | 9 |
| Sincerely, in Latin | 19 |
| Sincerely zealous | 17 |
| Sincerely renounced | 19 |
| Sincerely flattered | 19 |
| Sincerely flatter? | 18 |
| Sincerely craves | 16 |
| Sincerely | 9 |
| Sincere wish (Part 4) | 21 |
| Sincere wish (Part 3) | 21 |
| Sincere wish (Part 2) | 21 |
| Sincere wish (Part 1) | 21 |
| Sincere outpourings | 19 |
| Sincere or snide approval | 25 |
| Sincere or insincere approval | 29 |
| Sincere examination | 19 |
| Sincere attempt | 15 |
| Sincere | 7 |
| Since: Sp. | 10 |
| Since: Scot. | 12 |
| Since, to Scottie | 17 |
| Since, to Burns | 15 |
| Since, to Angus | 15 |
| Since, slangily | 15 |
| Since, once | 11 |
| Since, on New Year's Eve | 28 |
| Since, on New Year's | 24 |
| Since, New Year's Eve-style | 31 |
| Since, informally | 17 |
| Since, in Stuttgart | 19 |
| Since, in Spain (I promise the next clue won't be another foreign word) | 75 |
| Since, in Selkirk | 17 |
| Since, in Scotland | 18 |
| Since, in Savoie | 16 |