| Certain mortgage, briefly | 25 |
| Certain mortgage, informally | 28 |
| Certain Moslem | 14 |
| Certain Moslem group | 20 |
| Certain Moslem household | 24 |
| Certain mosquito protection | 27 |
| Certain motel fee | 17 |
| Certain mother | 14 |
| Certain moths | 13 |
| Certain motivator | 17 |
| Certain mound of earth | 22 |
| Certain mountain climber | 24 |
| Certain Mountain State | 22 |
| Certain mounted police | 22 |
| Certain mounts | 14 |
| Certain mouse catcher | 21 |
| Certain mouthwash / 1,000,000 = | 31 |
| Certain mover | 13 |
| Certain movie | 13 |
| Certain movie advertisements | 28 |
| Certain movie house | 19 |
| Certain movie light: Var. | 25 |
| Certain movie planet resident | 29 |
| Certain movie ratings | 21 |
| Certain movie role | 18 |
| Certain movie scenes | 20 |
| Certain movie theater | 21 |
| Certain movies | 14 |
| Certain MP3 player | 18 |
| Certain mugful | 14 |
| Certain mugs | 12 |
| Certain mules | 13 |
| Certain multiscreen cinema | 26 |
| Certain murals | 14 |
| Certain muscle | 14 |
| Certain muscle car, for short | 29 |
| Certain muscle injury | 21 |
| Certain muscles | 15 |
| Certain muscles, informally | 27 |
| Certain mushroom | 16 |
| Certain music | 13 |
| Certain music collection ... and this puzzle's theme | 56 |
| Certain music groups | 20 |
| Certain music holder | 20 |
| Certain music intervals | 23 |
| Certain music note | 18 |
| Certain music notes | 19 |
| Certain music teacher | 21 |
| Certain musical chord | 21 |
| Certain musical composition | 27 |
| Certain musical event | 21 |
| Certain musical group | 21 |
| Certain musical intervals | 25 |
| Certain musical key | 19 |
| Certain musical notes | 21 |
| Certain musical piece | 21 |
| Certain musical works | 21 |
| Certain musician | 16 |
| Certain Muslim | 14 |
| Certain Muslim dancer | 21 |
| Certain Muslims | 15 |
| Certain mustache shape | 22 |
| Certain mustangs or cayuses | 27 |
| Certain mutual funds | 20 |
| Certain muzzleloader | 20 |
| Certain mystique | 16 |
| Certain N.B.A.'er | 21 |
| Certain N.C.O. | 14 |
| Certain N.C.O.'s | 20 |
| Certain N.C.O.s | 15 |
| Certain N.F.L. players | 22 |
| Certain N.H.L.er | 16 |
| Certain N.Y. time | 17 |
| Certain NASA craft | 18 |
| Certain NASA equipment ... shown literally in the solution to this puzzle | 73 |
| Certain NASA launch | 19 |
| Certain NASA mission | 20 |
| Certain NASA probes? | 20 |
| Certain national ambassador, for short | 38 |
| Certain National League team | 28 |
| Certain Native American | 23 |
| Certain Native Americans | 24 |
| Certain native Canadian | 23 |
| Certain native of southern India | 32 |
| Certain native of the Mideast | 29 |
| Certain native Oklahomans | 25 |
| Certain natives of Tibet | 24 |
| Certain nautical canvas | 23 |
| Certain naval duty shift | 24 |
| Certain naval officer | 21 |
| Certain naval officers | 22 |
| Certain naval ordnance | 22 |
| Certain navel | 13 |
| Certain navel, slangily | 23 |
| Certain navigation tool | 23 |
| Certain navigational aids | 25 |
| Certain Navy officer | 20 |
| Certain Navy person | 19 |
| Certain NBA player | 18 |
| Certain NCO | 11 |