| Mussorgski "Picture" | 30 |
| Mussorgski's "Bilder ___ Ausstellung" | 51 |
| Mussorgsky bass | 15 |
| Mussorgsky subject | 18 |
| Mussorgsky vocal composition | 28 |
| Mussorgsky's "Pictures ___ Exhibition" | 52 |
| Mussorgsky's Boris | 22 |
| Mussorgsky's Godunov | 24 |
| Mussorgsky's mountain | 25 |
| Mussorgsky's mountain? | 26 |
| Mussulman | 9 |
| Must | 4 |
| Must acquire | 12 |
| Must be signed in ink | 21 |
| Must decide which pitching feat to choose? | 42 |
| Must finally come clean | 23 |
| Must for a dance number | 23 |
| Must give | 9 |
| Must go | 7 |
| Must have | 9 |
| Must have now, in memo-speak | 28 |
| Must have now, to an exec | 25 |
| Must involve | 12 |
| Must pay | 8 |
| Must pay, as a debt | 19 |
| Must repay | 10 |
| Must take care of | 17 |
| Must ___ (NBC slogan) | 21 |
| Must, colloquially | 18 |
| Must, e.g. | 10 |
| Must, in legalese | 17 |
| Must, in Scotland | 17 |
| Must, informally | 16 |
| Must, jocularly | 15 |
| Must, nonstandardly | 19 |
| Must, say | 9 |
| Must, slangily | 14 |
| Must, so to speak | 17 |
| Must, with "to" | 25 |
| Must-do | 7 |
| Must-have | 9 |
| Must-have item | 14 |
| Must-have toy of 1996 | 21 |
| Must-haves | 10 |
| Must-miss movie rating, probably | 32 |
| Must-see | 8 |
| Must-take coll. course | 22 |
| Mustache application | 20 |
| Mustache maker? | 15 |
| Mustache makeup | 15 |
| Mustache material | 17 |
| Mustache named for a Chinese criminal | 37 |
| Mustache site | 13 |
| Mustache style | 14 |
| Mustache toiletry | 17 |
| Mustache type | 13 |
| Mustache type: Fu ___ | 21 |
| Mustache variety | 16 |
| Mustached artist | 16 |
| Mustached mammal | 16 |
| Mustachioed "Simpsons" character Flanders | 51 |
| Mustachioed artist | 18 |
| Mustachioed artist (1904-1989) | 30 |
| Mustachioed cartoon character | 29 |
| Mustachioed detective | 21 |
| Mustachioed Don of classic films | 32 |
| Mustachioed Frank | 17 |
| Mustachioed master | 18 |
| Mustachioed master artist | 25 |
| Mustachioed movie critic | 24 |
| Mustachioed movie maven Gene | 28 |
| Mustachioed neighbor on "The Simpsons" | 48 |
| Mustachioed painter | 19 |
| Mustachioed plumber of Nintendo games | 37 |
| Mustachioed president | 21 |
| Mustachioed Simpsons neighbor | 29 |
| Mustachioed Spanish painter | 27 |
| Mustachioed Spanish surrealist | 30 |
| Mustachioed surrealist | 22 |
| Mustachioed TV muckraker | 24 |
| Mustachioed video-game character | 32 |
| Mustachioed villain who's a bit of a pantywaist? | 52 |
| Mustafa Kemal ___ | 17 |
| Mustang | 7 |
| Mustang and Impala | 18 |
| Mustang braking system? | 23 |
| Mustang catcher | 15 |
| Mustang competitor | 18 |
| Mustang competitors | 19 |
| Mustang contemporaries | 22 |
| Mustang encourager | 18 |
| Mustang feature | 15 |
| Mustang feature, maybe | 22 |
| Mustang holder | 14 |
| Mustang models | 14 |
| Mustang mover? | 14 |
| Mustang option | 14 |
| Mustang or impala, e.g. | 23 |
| Mustang or Lynx | 15 |
| Mustang or Viper, e.g. | 22 |