| Mary, "the ___ of Tralee" | 35 |
| Mary, Murray, and Ted's boss at WJM | 39 |
| Mary, Queen of Scots' family name | 37 |
| Mary-Kate and Ashley of "Full House" | 46 |
| Mary-Kate and Ashley ___ (celebrity twins) | 42 |
| Mary-Kate and Ashley's sign, fittingly | 42 |
| Mary-Kate Olsen's school, once | 34 |
| Mary-Kate, to Ashley, and vice versa | 36 |
| Mary-Louise Parker series on Showtime | 37 |
| Maryland "All Sides" band, briefly | 44 |
| Maryland (with ''state'') | 41 |
| Maryland and Virginia are in it: Abbr. | 38 |
| Maryland base named for a Union gen. | 36 |
| Maryland home of the Goddard Space Flight Center | 48 |
| Maryland home of the Walter Reed medical center | 47 |
| Maryland hoopsters, in headlines | 32 |
| Maryland town on the Chesapeake Bay | 35 |
| Maryland's historic ___ Creek | 33 |
| Maryland's ___ Air Force Base | 33 |
| Maryland, Virginia, etc., in D.C. | 33 |
| Mascagni opera composed in Mussolini's honor | 48 |
| Mascot of Kellogg's Honey Smacks | 36 |
| Mascot of the Mexico City Olympics | 34 |
| Mascot of the Queensland rugby team | 35 |
| Mascot of the UC Santa Barbara Gauchos | 38 |
| Mascot that's a shell of a man? | 35 |
| Mascot to be avoided, in vintage Domino's ads | 49 |
| Masefield play "The Tragedy of ___" | 45 |
| Masefield's "Dead ___" | 36 |
| Masefield's "The Tragedy of ---" | 46 |
| Masefield's "The Tragedy of ___" | 46 |
| Masefield's "The Tragedy of _____" | 48 |
| Masefield's "The ___ Wind" | 40 |
| Masefield's "___ Harker" | 38 |
| Masefield's "___ That Pass By" | 44 |
| Masefield's "___ the Fox" | 39 |
| Masha and Irina's sister, in a Chekhov play | 47 |
| Masha and Irina's sister, in a Chekhov work | 47 |
| Masha and Irina's sister, in Chekhov | 40 |
| Mashgiach ruchani's workplace | 33 |
| Mashhad is its second-largest city | 34 |
| Mashie niblick's modern equivalent | 38 |
| Mask, jacket, and gloves, to a fencer | 37 |
| Masked avenger who's a total wuss? | 38 |
| Masked crime fighter (with "The") | 43 |
| Masked swordsman role for Banderas | 34 |
| Masochist's request to his sweetheart? | 42 |
| Masochistic trumpeter's prediction? | 39 |
| Mason of "Chapter Two" | 32 |
| Mason of "Cinderella Liberty" | 39 |
| Mason of "The Goodbye Girl" | 37 |
| Mason with a wide mouth that you can put up with | 48 |
| Mason's boundary-marking partner | 36 |
| Mason's discouraging advice? | 32 |
| Mason's partner in investments | 34 |
| Masonry that requires little mortar | 35 |
| Masonry work that may be smoothed with a trowel | 47 |
| Mass : kilogramme :: length : ___ | 33 |
| Mass of boulders, etc. left by a glacier | 40 |
| Mass of unstratified glacial drift | 34 |
| Mass prayer, "Agnus ___" | 34 |
| Mass serving when the wine runs out? | 36 |
| Mass times acceleration, in physics | 35 |
| Mass transit option in a French city? | 37 |
| Mass ___ (Boston thoroughfare, to locals) | 41 |
| Mass, length and speed, to a physicist | 38 |
| Mass. senator's monogram, 1962-2009 | 39 |
| Mass. ___ (Boston thoroughfare, to locals) | 42 |
| Massachusetts Ave. bldg., in D.C. | 33 |
| Massachusetts birthplace of N.C. Wyeth | 38 |
| Massachusetts city called Tool Town | 35 |
| Massachusetts city on the Connecticut River | 43 |
| Massachusetts city on the Merrimack | 35 |
| Massachusetts city where volleyball was invented | 48 |
| Massachusetts city with a harbor | 32 |
| Massachusetts city, birthplace of N. C. Wyeth | 45 |
| Massachusetts college named for a nearby peak | 45 |
| Massachusetts college where Pixies formed | 41 |
| Massachusetts Congresswoman Niki | 32 |
| Massachusetts cottage with a wintry air about it? | 49 |
| Massachusetts county just north of Boston | 41 |
| Massachusetts getaway, with "the" | 43 |
| Massachusetts governor after John Hancock | 41 |
| Massachusetts governor ___ Patrick | 34 |
| Massachusetts home of Regis College | 35 |
| Massachusetts landmark made famous by Thoreau | 45 |
| Massachusetts Maritime Academy student, e.g. | 44 |
| Massachusetts music festival locale | 35 |
| Massachusetts or Connecticut in D.C. | 36 |
| Massachusetts port on Nantucket Sound | 37 |
| Massachusetts senator before Kerry | 34 |
| Massachusetts senator succeeded by Kerry | 40 |
| Massachusetts senator's essay about luggage? | 48 |
| Massachusetts site of Phillips Academy | 38 |
| Massachusetts town famous for its clams | 39 |
| Massachusetts town in Middlesex County | 38 |
| Massachusetts town named for a river in England | 47 |
| Massachusetts town near the New Hampshire border | 48 |
| Massachusetts town that's home to Tanglewood | 48 |
| Massachusetts town with an Algonquian name | 42 |