| Answer | Crossword Clue |
|---|---|
| MUM | With mouth shut |
| HUM | Sing with one's mouth shut |
| SHRUG | Say "I don't know" with your mouth shut |
| CANIT | "Shut your mouth!" |
| HUSH | "Shut yo' mouth!" |
| HUSH | "Shut your mouth!" |
| HUMS | Keeps one's mouth shut? |
| YAWNS | Can't keep one's mouth shut? |
| TRAP | Mouth that needs to be shut? |
| PUTAQUARKINIT | Way to shut a subatomic mouth? |
| YAWN | Impossibility if you keep your mouth shut |
| YAWN | You can't keep your mouth shut during it |
| SUCCESS | Work + play + keeping your mouth shut, according to Einstein |
