| Sing Sing warden-author | 23 |
| Sing or string follower | 23 |
| Sing one's praises | 22 |
| Sing one's own praises | 26 |
| Sing nonsense syllables | 23 |
| Sing like the birdies sing | 26 |
| Sing like Michael Bublé | 26 |
| Sing like Mel Tormé | 22 |
| Sing like Leonard Cohen | 23 |
| Sing like Harry Connick Jr. | 27 |
| Sing like Ella Fitzgerald | 25 |
| Sing like an Austrian, maybe | 28 |
| Sing like a mountaineer | 23 |
| Sing in the snow, perhaps | 25 |
| Sing in certain syllables | 25 |
| Sing in a low, gentle tone | 26 |
| Sing in a full, happy voice | 27 |
| Sing in a carefree way | 22 |
| Sing from the mountaintops | 26 |
| Sing Dufourspitze-style | 23 |
| Sing door-to-door in December | 29 |
| Sing cowboy songs, maybe | 24 |
| Sing by changing register | 25 |
| Sing a siren's song | 23 |
| Sing -- (vocalize alone) | 24 |
| Sing -- (croon by oneself) | 26 |
| Sing "shooby-doo" | 27 |
| Sing "nyah-nyah" to | 29 |
| Sinful city of Scripture | 24 |
| Sinecures for ward heelers | 26 |
| Sine–non connection | 26 |
| Sine, cosine, or tangent | 24 |
| Sine, cosine or tangent | 23 |
| Sine, cosine and tangent | 24 |
| Sine's reciprocal: Abbr. | 28 |
| Sine ___ (timeless): Lat. | 25 |
| Sine ___ (indefinitely) | 23 |
| Sine __ non: essential | 22 |
| Sine qua ___ (necessity) | 24 |
| Sine qua non for an athlete | 27 |
| Sine and cosine, for two | 24 |
| Sindbad hid behind its egg | 26 |
| Sinclair with a Pulitzer | 24 |
| Sinclair Pulitzer-winner | 24 |
| Sinclair Lewis's Sauk ___ | 29 |
| Sinclair Lewis's nickname | 29 |
| Sinclair Lewis's Gantry | 27 |
| Sinclair Lewis' Elmer | 25 |
| Sinclair Lewis nickname | 23 |
| Sinclair Lewis heroine | 22 |
| Sinclair Lewis died here | 24 |
| Sinclair Lewis character | 24 |
| Sinclair Lewis best-seller | 26 |
| Sincere or snide approval | 25 |
| Sincere or insincere approval | 29 |
| Since, on New Year's Eve | 28 |
| Since, on New Year's | 24 |
| Since, in a nostalgic song | 26 |
| Since, in a famous song | 23 |
| Since January 1: Abbr. | 22 |
| Since Jan. 1, on a pay stub | 27 |
| Since 1/1, to a C.P.A. | 22 |
| Sinbad's transportation | 27 |
| Sinbad's transport, once | 28 |
| Sinbad's transport | 22 |
| Sinbad's home port | 22 |
| Sinbad's giant egg-layer | 28 |
| Sinbad's avian attacker | 27 |
| Sinbad the Sailor's town | 28 |
| Sinbad or Chris Rock, e.g. | 26 |
| Sinatra-Minnelli show-stopper | 29 |
| Sinatra, to bobby soxers | 24 |
| Sinatra, "The ___" | 28 |
| Sinatra's youngest | 22 |
| Sinatra's wife before Mia | 29 |
| Sinatra's was tender | 24 |
| Sinatra's top line? | 23 |
| Sinatra's hometown | 22 |
| Sinatra's group et al. | 26 |
| Sinatra's great asset | 25 |
| Sinatra's cohorts, once | 27 |
| Sinatra's big band leader | 29 |
| Sinatra tune of '61 | 23 |
| Sinatra tune of '47 | 23 |
| Sinatra song of '64 | 23 |
| Sinatra made his fans do it | 27 |
| Sinatra backers, sometimes | 26 |
| Sinatra album or phrase | 23 |
| Sinatra "As ___ By" | 29 |
| Sinaloa "y" Sonora | 28 |
| Sin of one of the Finns? | 24 |
| Sin for the green-eyed | 22 |
| Simulcast sites, for short | 26 |
| Simulcast site, briefly | 23 |
| Simulated sun exposure study? | 29 |
| Simulated living room feature | 29 |
| Simulate, as old battles | 24 |
| Simulate, as an old battle | 26 |
| Simulate, as a war battle | 25 |
| Simulate unflatteringly | 23 |