| Dr. Phil's discoverer | 25 |
| Dr. Phil's last name | 24 |
| Dr. Phil's surname | 22 |
| Dr. Phil, e.g. | 14 |
| Dr. Primrose | 12 |
| Dr. provider | 12 |
| Dr. providers | 13 |
| Dr. Ray Langston's TV team | 30 |
| Dr. Raymond Damadian's brainchild | 37 |
| Dr. Rhine's field | 21 |
| Dr. Rhine's field: Abbr. | 28 |
| Dr. Rhine's specialty | 25 |
| Dr. Rhine's study | 21 |
| Dr. Richards of tennis | 22 |
| Dr. Robert, with an eponymous diet | 34 |
| Dr. Ruth's cause | 20 |
| Dr. Ruth's field | 20 |
| Dr. Ruth's specialty | 24 |
| Dr. Ruth's topic | 20 |
| Dr. Ruth, e.g. | 14 |
| Dr. Ruth, for one | 17 |
| Dr. Sabin studied it | 20 |
| Dr. Sabin's field | 21 |
| Dr. Sabin's target | 22 |
| Dr. Salk | 8 |
| Dr. Salk's conquest | 23 |
| Dr. Salk's target | 21 |
| Dr. Salk's target: 1952–55 | 37 |
| Dr. Salk, once | 14 |
| Dr. Sattler of "Jurassic Park" | 40 |
| Dr. Schneider of "Indiana Jones and the Last Crusade" | 63 |
| Dr. Scholl products | 19 |
| Dr. Scholl's concern | 24 |
| Dr. Scholl's insole brand | 29 |
| Dr. Scholl's offering | 25 |
| Dr. Scholl's product | 24 |
| Dr. Scholl's products | 25 |
| Dr. Scholl's purchase | 25 |
| Dr. Schweitzer | 14 |
| Dr. Seuss animal | 16 |
| Dr. Seuss book | 14 |
| Dr. Seuss book about a home aquarium? | 37 |
| Dr. Seuss book made into a 2008 movie | 37 |
| Dr. Seuss book, with "The" | 36 |
| Dr. Seuss character | 19 |
| Dr. Seuss character voiced on TV by June Foray | 46 |
| Dr. Seuss character who opposes the Once-ler | 44 |
| Dr. Seuss character with a red hat | 34 |
| Dr. Seuss character, with "the" | 41 |
| Dr. Seuss characters, with "the" | 42 |
| Dr. Seuss classic | 17 |
| Dr. Seuss classic (with "The") | 40 |
| Dr. Seuss creation | 18 |
| Dr. Seuss creature | 18 |
| Dr. Seuss elephant | 18 |
| Dr. Seuss environmentalist | 26 |
| Dr. Seuss forte | 15 |
| Dr. Seuss pachyderm | 19 |
| Dr. Seuss pair | 14 |
| Dr. Seuss shelled title character | 33 |
| Dr. Seuss short story about stubbornness, with "The" | 62 |
| Dr. Seuss story | 15 |
| Dr. Seuss story about stubbornness, with "The" | 56 |
| Dr. Seuss story setting | 23 |
| Dr. Seuss title | 15 |
| Dr. Seuss title animal | 22 |
| Dr. Seuss title character | 25 |
| Dr. Seuss title character with a shell | 38 |
| Dr. Seuss title creature | 24 |
| Dr. Seuss title that completes the warning "Stop! You must not..." | 76 |
| Dr. Seuss went there | 20 |
| Dr. Seuss' ''If I Ran the ___'' | 51 |
| Dr. Seuss' ''If __ the Zoo'' | 48 |
| Dr. Seuss' 'Horton Hears --!' | 41 |
| Dr. Seuss' 'If -- the Circus' | 41 |
| Dr. Seuss' 'If -- the Zoo' | 38 |
| Dr. Seuss' 'Mr. Brown Can --! Can You?' | 51 |
| Dr. Seuss' 'The -- the Hat' | 39 |
| Dr. Seuss' 'The 500 -- of Bartholomew Cubbins' | 58 |
| Dr. Seuss' "Horton Hears ___" | 43 |
| Dr. Seuss' "If I Ran the ___" | 43 |
| Dr. Seuss' "If __ the Circus" | 43 |
| Dr. Seuss' "If ___ the Zoo" | 41 |
| Dr. Seuss' "Sam ___" | 34 |
| Dr. Seuss' "___ Ran the Zoo" | 42 |
| Dr. Seuss' -- -am | 21 |
| Dr. Seuss' elephant | 23 |
| Dr. Seuss' environmental character | 38 |
| Dr. Seuss' environmental hero | 33 |
| Dr. Seuss' environmentalist | 31 |
| Dr. Seuss' feline character | 31 |
| Dr. Seuss' Thidwick, for one | 32 |
| Dr. Seuss' turtle | 21 |
| Dr. Seuss' Yertle, say | 26 |
| Dr. Seuss's "And to Think That ___ It on Mulberry Street" | 71 |
| Dr. Seuss's "Bartholomew ___ the Oobleck" | 55 |
| Dr. Seuss's "Gertrude ___" | 40 |
| Dr. Seuss's "Hop on ___" | 38 |
| Dr. Seuss's "Horton Hears __" | 43 |
| Dr. Seuss's "Horton Hears ___" | 44 |