| Jack known by tots | 18 |
| Jack Klugman TV role | 20 |
| Jack Kerouac, e.g. | 18 |
| Jack Kerouac, Allen Ginsberg, and others | 40 |
| Jack Kerouac, Allen Ginsberg and others | 39 |
| Jack Kerouac's tale of highway swindles? | 44 |
| Jack Kerouac's last novel | 29 |
| Jack Kerouac's first wife | 29 |
| Jack Kerouac or Allen Ginsberg | 30 |
| Jack Kent cartoon King ___ | 26 |
| Jack jumper | 11 |
| Jack Jones's mother | 23 |
| Jack Jones' record label | 28 |
| Jack Johnson's "Pancakes" | 39 |
| Jack Johnson "___ Clowns" | 35 |
| Jack Johnson "To the ___" | 35 |
| Jack Johnson "Bubble ___" | 35 |
| Jack insert, briefly | 20 |
| Jack in the deck | 16 |
| Jack in the Box, e.g. | 21 |
| Jack in the Box device: Var. | 28 |
| Jack in the Box CEO Linda | 25 |
| Jack in the bottle | 18 |
| Jack in oaters | 14 |
| Jack in Mexico? | 15 |
| Jack in many a Western | 22 |
| Jack in cribbage | 16 |
| Jack in a nursery rhyme | 23 |
| Jack in a kiddie's rhyme | 28 |
| Jack in a deck | 14 |
| Jack in "Around the World in 80 Days" | 47 |
| Jack Horner, for one | 20 |
| Jack Horner, Christmas piewise | 30 |
| Jack Horner's treat | 23 |
| Jack Horner's treasure | 26 |
| Jack Horner's surprise | 26 |
| Jack Horner's reward | 24 |
| Jack Horner's prize | 23 |
| Jack Horner's place | 23 |
| Jack Horner's last words | 28 |
| Jack Horner's fruit | 23 |
| Jack Horner's find | 22 |
| Jack Horner's fare | 22 |
| Jack Horner's discovery | 27 |
| Jack Horner's dessert | 25 |
| Jack Horner's boast | 23 |
| Jack Horner line ender | 22 |
| Jack Horner for one | 20 |
| Jack Homer's last words | 27 |
| Jack Higgins book | 17 |
| Jack Haley's musical impediment? | 36 |
| Jack Haley's metal | 22 |
| Jack Haley role | 15 |
| Jack Frost? | 11 |
| Jack Frost, in a way | 20 |
| Jack Frost's touch | 22 |
| Jack Frost's product | 24 |
| Jack Frost's handiwork | 26 |
| Jack Frost's "canvas" | 35 |
| Jack Frost role? | 16 |
| Jack Frost brought __ | 21 |
| Jack Frost | 10 |
| Jack from Miami, Ariz. | 22 |
| Jack for Jacques? | 17 |
| Jack follower? | 14 |
| Jack edged him out in the 1980 U.S. Open | 40 |
| Jack Durbeyfield's daughter | 31 |
| Jack Diamond's nickname | 27 |
| Jack Dempsey, the ___ Mauler | 28 |
| Jack Dempsey, aka the Manassa ___ | 33 |
| Jack Dempsey, "The Manassa ---" | 41 |
| Jack Dempsey's Colorado birthplace | 38 |
| Jack Dempsey's birthplace | 29 |
| Jack Daniel's field? | 24 |
| Jack Casady band Hot ___ | 24 |
| Jack Bruce power trio | 21 |
| Jack broke it | 13 |
| Jack Bristow's employer in "Alias" | 48 |
| Jack Boyle detective | 20 |
| Jack Blum's "Meatballs" character | 47 |
| Jack Blades band ___ Yankees | 28 |
| Jack Black title role | 21 |
| Jack Black film of '06 | 26 |
| Jack Black dropped out of it | 28 |
| Jack Benny-like | 15 |
| Jack Benny, to Rochester | 24 |
| Jack Benny's was 39 for several years | 41 |
| Jack Benny's was 39 | 23 |
| Jack Benny's theme song | 27 |
| Jack Benny's secret | 23 |
| Jack Benny's nemesis in a '30s-'40s radio "feud" | 70 |
| Jack Benny's instrument | 27 |
| Jack Benny's exclamation | 28 |
| Jack Benny's 39? | 20 |
| Jack Benny's 39 | 19 |
| Jack Benny's '47 summer replacement | 43 |
| Jack Benny word | 15 |
| Jack Benny persona | 18 |
| Jack Benny in his patented pose? | 32 |
| Jack Benny film "Charley's ---" | 45 |