| Prolonged battle | 16 |
| Prolonged attacks | 17 |
| Prolonged attack | 16 |
| Prolonged assault | 17 |
| Prolonged account | 17 |
| Prolonged | 9 |
| Prolong the coffee break | 24 |
| Prolong one's gaze | 22 |
| Prolong a pursuit | 17 |
| Prolong | 7 |
| Prologue, perhaps | 17 |
| Prologue, for short | 19 |
| Prologue's antecedent | 25 |
| Prologue to V? | 14 |
| Prologue follower | 17 |
| Prologue | 8 |
| Prolixity | 9 |
| Prolix person | 13 |
| Prolix one | 10 |
| Prolix gift | 11 |
| Prolix | 6 |
| Prolific; fertile | 17 |
| Prolific writer?: abbr. | 23 |
| Prolific writer? | 16 |
| Prolific writer's output | 28 |
| Prolific writer on calculus | 27 |
| Prolific writer Isaac | 21 |
| Prolific writer Asimov | 22 |
| Prolific writer | 15 |
| Prolific unknown author? | 24 |
| Prolific tree in Michigan | 25 |
| Prolific suspense novelist Woods | 32 |
| Prolific science fiction author Isaac | 37 |
| Prolific romance writer Roberts | 31 |
| Prolific Roman love poet | 24 |
| Prolific psalmist | 17 |
| Prolific Princeton novelist | 27 |
| Prolific poet? | 14 |
| Prolific poet: Abbr. | 20 |
| Prolific plants | 15 |
| Prolific plant in W. Va. | 24 |
| Prolific patentee | 17 |
| Prolific painter of Paris | 25 |
| Prolific musician/producer Brian | 32 |
| Prolific Mozart contemporary | 28 |
| Prolific layer of eggs | 22 |
| Prolific inventor's initials | 32 |
| Prolific inventor Nikola | 24 |
| Prolific inventor | 17 |
| Prolific income source | 22 |
| Prolific Hungarian mathematician | 32 |
| Prolific female recording artist born in Crete | 46 |
| Prolific egg layer | 18 |
| Prolific composer or author | 27 |
| Prolific composer | 17 |
| Prolific chickens | 17 |
| Prolific Chicago indie producer | 31 |
| Prolific cantata composer | 25 |
| Prolific British author | 23 |
| Prolific author? | 16 |
| Prolific author: Abbr. | 22 |
| Prolific author, for short | 26 |
| Prolific author | 15 |
| Prolific auth.? | 15 |
| Prolific auth. | 14 |
| Prolific Asimov | 15 |
| Prolific anth. author | 21 |
| Prolific 18th-century family of composers | 41 |
| Prolific "author" | 27 |
| Prolific | 8 |
| Proliferous varmint | 19 |
| Proliferates | 12 |
| Proliferate | 11 |
| Proletariat | 11 |
| Prolegomenon | 12 |
| Prokofiev's wolf catcher | 28 |
| Prokofiev's saucy opus? | 27 |
| Prokofiev's pancakes | 24 |
| Prokofiev's lupine trapper | 30 |
| Prokofiev's French horn | 27 |
| Prokofiev's "The Love ___" | 40 |
| Prokofiev's "The Flaming ___" | 43 |
| Prokofiev's 'The Love for Three --' | 47 |
| Prokofiev work | 14 |
| Prokofiev title boy | 19 |
| Prokofiev piece | 15 |
| Prokofiev orchestral fairy tale | 31 |
| Prokofiev or Rachmaninoff | 25 |
| Prokofiev hero | 14 |
| Prokofiev character | 19 |
| Prokofiev ballet: 1945 | 22 |
| Prokofiev ballet: 1935 | 22 |
| Prokofiev ballet based on a fairy tale | 38 |
| Prokofiev ballet | 16 |
| Projects, in a way | 18 |
| Projects, firewise | 18 |
| Projects that make wasteland usable | 35 |
| Projects for beavers | 20 |
| Projects | 8 |
| Projectors' targets | 23 |