| Powerful particle | 17 |
| Powerful part of a crocodile | 28 |
| Powerful pair of checkers | 25 |
| Powerful painkiller | 19 |
| Powerful PAC | 12 |
| Powerful oxidant | 16 |
| Powerful Ottoman ancestor of a certain republican governor? | 59 |
| Powerful org. with HQ in Fairfax, Va. | 37 |
| Powerful ones | 13 |
| Powerful one | 12 |
| Powerful Olympics team | 22 |
| Powerful old Pontiac | 20 |
| Powerful ocean surge | 20 |
| Powerful ocean fish | 19 |
| Powerful Norse god | 18 |
| Powerful news story about...a mill's brown-bagging mandate? | 63 |
| Powerful movement | 17 |
| Powerful Mother | 15 |
| Powerful mite | 13 |
| Powerful minority | 17 |
| Powerful military tactic | 24 |
| Powerful militaristic displays, for short | 41 |
| Powerful Mideast force | 22 |
| Powerful mackerel shark | 23 |
| Powerful lobbying org. | 22 |
| Powerful lobby in D.C. | 22 |
| Powerful lobby | 14 |
| Powerful liquid, for short | 26 |
| Powerful line | 13 |
| Powerful leader | 15 |
| Powerful kind of engine | 23 |
| Powerful kicker | 15 |
| Powerful Jedi master | 20 |
| Powerful Italian family | 23 |
| Powerful initials | 17 |
| Powerful influence | 18 |
| Powerful industrialist | 22 |
| Powerful Indian | 15 |
| Powerful impulse | 16 |
| Powerful hurricane of 2005 | 26 |
| Powerful hurricane of 1966 | 26 |
| Powerful hormone | 16 |
| Powerful Hindu deities | 22 |
| Powerful herbicide with a colorful name | 39 |
| Powerful heart | 14 |
| Powerful health care lobbying gp. | 33 |
| Powerful handheld electronic devices | 36 |
| Powerful guy | 12 |
| Powerful gun | 12 |
| Powerful group | 14 |
| Powerful Greek deities | 22 |
| Powerful god | 12 |
| Powerful giant | 14 |
| Powerful fur family? | 20 |
| Powerful friend of Queen Victoria | 33 |
| Powerful force | 14 |
| Powerful firecracker | 20 |
| Powerful financiers | 19 |
| Powerful financier | 18 |
| Powerful figure | 15 |
| Powerful female | 15 |
| Powerful feller? | 16 |
| Powerful feline | 15 |
| Powerful faction | 16 |
| Powerful explosive, familiarly | 30 |
| Powerful explosive force | 24 |
| Powerful explosive | 18 |
| Powerful experiments | 20 |
| Powerful equine | 15 |
| Powerful engines | 16 |
| Powerful engine | 15 |
| Powerful energy-market gp. | 26 |
| Powerful energy sources that surround supermassive black holes | 62 |
| Powerful energy grp. | 20 |
| Powerful energy cartel (abbr.) | 30 |
| Powerful energy cartel | 22 |
| Powerful emotion | 16 |
| Powerful economic coalition, formerly | 37 |
| Powerful economic coalition, before Russia joined | 49 |
| Powerful economic coalition | 27 |
| Powerful drought accompaniers, often | 36 |
| Powerful draft horse | 20 |
| Powerful downpour? | 18 |
| Powerful dog that loves a Passover staple? | 42 |
| Powerful demon, in Arabic mythology | 35 |
| Powerful deity | 14 |
| Powerful defeat | 15 |
| Powerful DC lobby | 17 |
| Powerful D.C. lobby | 19 |
| Powerful D.C. group | 19 |
| Powerful current | 16 |
| Powerful court opponent | 23 |
| Powerful couple in publishing, once | 35 |
| Powerful constrictor | 20 |
| Powerful connections | 20 |
| Powerful conjunction? | 21 |
| Powerful combos | 15 |
| Powerful combinations | 21 |
| Powerful combination | 20 |
| Powerful coach for Cinderella? | 30 |