| Mass of boulders, etc. left by a glacier | 40 |
| Mass : kilogramme :: length : ___ | 33 |
| Masonry work that may be smoothed with a trowel | 47 |
| Masonry that requires little mortar | 35 |
| Mason's partner in investments | 34 |
| Mason's discouraging advice? | 32 |
| Mason's boundary-marking partner | 36 |
| Mason with a wide mouth that you can put up with | 48 |
| Mason of "The Goodbye Girl" | 37 |
| Mason of "Cinderella Liberty" | 39 |
| Mason of "Chapter Two" | 32 |
| Masochistic trumpeter's prediction? | 39 |
| Masochist's request to his sweetheart? | 42 |
| Masked swordsman role for Banderas | 34 |
| Masked crime fighter (with "The") | 43 |
| Masked avenger who's a total wuss? | 38 |
| Mask, jacket, and gloves, to a fencer | 37 |
| Mashie niblick's modern equivalent | 38 |
| Mashhad is its second-largest city | 34 |
| Mashgiach ruchani's workplace | 33 |
| Masha and Irina's sister, in Chekhov | 40 |
| Masha and Irina's sister, in a Chekhov work | 47 |
| Masha and Irina's sister, in a Chekhov play | 47 |
| Masefield's "___ the Fox" | 39 |
| Masefield's "___ That Pass By" | 44 |
| Masefield's "___ Harker" | 38 |
| Masefield's "The ___ Wind" | 40 |
| Masefield's "The Tragedy of _____" | 48 |
| Masefield's "The Tragedy of ___" | 46 |
| Masefield's "The Tragedy of ---" | 46 |
| Masefield's "Dead ___" | 36 |
| Masefield play "The Tragedy of ___" | 45 |
| Mascot to be avoided, in vintage Domino's ads | 49 |
| Mascot that's a shell of a man? | 35 |
| Mascot of the UC Santa Barbara Gauchos | 38 |
| Mascot of the Queensland rugby team | 35 |
| Mascot of the Mexico City Olympics | 34 |
| Mascot of Kellogg's Honey Smacks | 36 |
| Mascagni opera composed in Mussolini's honor | 48 |
| Maryland, Virginia, etc., in D.C. | 33 |
| Maryland's ___ Air Force Base | 33 |
| Maryland's historic ___ Creek | 33 |
| Maryland town on the Chesapeake Bay | 35 |
| Maryland hoopsters, in headlines | 32 |
| Maryland home of the Walter Reed medical center | 47 |
| Maryland home of the Goddard Space Flight Center | 48 |
| Maryland base named for a Union gen. | 36 |
| Maryland and Virginia are in it: Abbr. | 38 |
| Maryland (with ''state'') | 41 |
| Maryland "All Sides" band, briefly | 44 |
| Mary-Louise Parker series on Showtime | 37 |
| Mary-Kate, to Ashley, and vice versa | 36 |
| Mary-Kate Olsen's school, once | 34 |
| Mary-Kate and Ashley's sign, fittingly | 42 |
| Mary-Kate and Ashley ___ (celebrity twins) | 42 |
| Mary-Kate and Ashley of "Full House" | 46 |
| Mary, Queen of Scots' family name | 37 |
| Mary, Murray, and Ted's boss at WJM | 39 |
| Mary, "the ___ of Tralee" | 35 |
| Mary's upstairs neighbor, in 1970s TV | 41 |
| Mary's sister on "Soap" | 37 |
| Mary's nursery-rhyme companion | 34 |
| Mary's inseparable companion | 32 |
| Mary's friend in "Mary Poppins" | 45 |
| Mary's co-star in "South Pacific" | 47 |
| Mary's "South Pacific" costar | 43 |
| Mary's "South Pacific" co-star | 44 |
| Mary's "Peter Pan" nemesis | 40 |
| Mary's "Little House" sister | 42 |
| Mary's "Ink" co-star | 34 |
| Mary ___, Shakespeare's mother | 34 |
| Mary ___, famous educator: 1875–1955 | 43 |
| Mary ___ Mobley (Miss America 1959) | 35 |
| Mary ___ Evans (George Eliot's real name) | 45 |
| Mary __: ship in a Hammond Innes novel | 38 |
| Mary __ Ash, cosmetics company founder | 38 |
| Mary who married a future president | 35 |
| Mary who founded Mount Holyoke College | 38 |
| Mary Tyler Moore, to Dick Van Dyke | 34 |
| Mary Tyler Moore's boss: 1970-77 | 36 |
| Mary Todd's husband, casually | 33 |
| Mary Shelley subtitle, with "The" | 43 |
| Mary Quant's fashion contribution | 37 |
| Mary Pickford title role of 1923 | 32 |
| Mary Orr's "The Wisdom of ___" | 44 |
| Mary of "Where Eagles Dare" | 37 |
| Mary of "The Maltese Falcon," 1941 | 44 |
| Mary of "The Maltese Falcon" | 38 |
| Mary of "Don Juan," 1926 | 34 |
| Mary of ''The Maltese Falcon'' | 46 |
| Mary Martin's mid-'50s Broadway income? | 47 |
| Mary J. Blige "Take Me ___" | 37 |
| Mary J. Blige "Take Me ___ Am" | 40 |
| Mary in "The Maltese Falcon" | 38 |
| Mary Higgins Clark (with "The") | 41 |
| Mary Bobbsey's older daughter | 33 |
| Mary Anne in "The Baby-Sitters Club" | 46 |
| Mary Ann __, George Eliot's birth name | 42 |
| Marxist patronage of the far left? | 34 |
| Marxist on "Sesame Street"? | 37 |