| Cause of fitful sleep | 21 |
| Cause of feline friskiness | 26 |
| Cause of fatigue | 16 |
| Cause of familial misunderstanding | 34 |
| Cause of eyelid redness | 23 |
| Cause of extra innings | 22 |
| Cause of exhaustion | 19 |
| Cause of ex-doughboys' desertion of farms | 45 |
| Cause of everything going up? | 29 |
| Cause of eruptions | 18 |
| Cause of erosion, maybe | 23 |
| Cause of employee elation | 25 |
| Cause of distress | 17 |
| Cause of discouraging marks | 27 |
| Cause of disaster? | 18 |
| Cause of disappointment | 23 |
| Cause of diminishing returns | 28 |
| Cause of difficulty in understanding Ben Bernanke? | 50 |
| Cause of diamond rhubarbs | 25 |
| Cause of destruction | 20 |
| Cause of depletion | 18 |
| Cause of delirium in farm animals | 33 |
| Cause of delays | 15 |
| Cause of delay | 14 |
| Cause of deflation | 18 |
| Cause of deep division | 22 |
| Cause of dampness | 17 |
| Cause of crying in a crib | 25 |
| Cause of crying | 15 |
| Cause of cross words | 20 |
| Cause of cowardice | 18 |
| Cause of coughs and sniffles | 28 |
| Cause of cough | 14 |
| Cause of congestion / Detective's challenge / Loony | 55 |
| Cause of congestion | 19 |
| Cause of conflict, often | 24 |
| Cause of conflict, maybe | 24 |
| Cause of colonists' concern in 1765 | 39 |
| Cause of colonial unrest | 24 |
| Cause of cold sweat | 19 |
| Cause of cold feet? | 19 |
| Cause of Cleopatra's undoing | 32 |
| Cause of Cleopatra's demise | 31 |
| Cause of Cleopatra's death | 30 |
| Cause of Cleo's quietus | 27 |
| Cause of Cleo's demise | 26 |
| Cause of civil action | 21 |
| Cause of chubby cheeks, perhaps | 31 |
| Cause of Chinese restaurant syndrome | 36 |
| Cause of chills and fever | 25 |
| Cause of chills | 15 |
| Cause of chaotic weather | 24 |
| Cause of certain blindness | 26 |
| Cause of carelessness | 21 |
| Cause of careless mistakes | 26 |
| Cause of calamity | 17 |
| Cause of burnout | 16 |
| Cause of brittle cigars? | 24 |
| Cause of breathlessness | 23 |
| Cause of boredom, perhaps | 25 |
| Cause of booze blues | 20 |
| Cause of blurry vision, perhaps | 31 |
| Cause of blast-phemy? | 21 |
| Cause of big smiles | 19 |
| Cause of being lit up like a Christmas tree | 43 |
| Cause of beach erosion | 22 |
| Cause of bankruptcy | 19 |
| Cause of bad singing, often | 27 |
| Cause of bad luck, so they say | 30 |
| Cause of bad luck, perhaps | 26 |
| Cause of bad luck | 17 |
| Cause of baby blues? | 20 |
| Cause of atrophy | 16 |
| Cause of astringent flavor in wine | 34 |
| Cause of anomie | 15 |
| Cause of annoyance | 18 |
| Cause of an unexpected fall | 27 |
| Cause of an S.R.O. sign | 23 |
| Cause of an outburst | 20 |
| Cause of an out | 15 |
| Cause of an ophthalmological bill, perhaps | 42 |
| Cause of an olfactory offense | 29 |
| Cause of an itch | 16 |
| Cause of an intl. incident, maybe | 33 |
| Cause of an intestinal problem | 30 |
| Cause of an insurance investigation | 35 |
| Cause of an insurance increase, for short | 41 |
| Cause of an increase in blood pressure, perhaps | 47 |
| Cause of an increase in blood pressure, maybe | 45 |
| Cause of an implosion | 21 |
| Cause of an impasse | 19 |
| Cause of an immune response | 27 |
| Cause of an icicle | 18 |
| Cause of an explosion | 21 |
| Cause of an env. bulge | 22 |
| Cause of an early bump | 22 |
| Cause of an awakening | 21 |
| Cause of an audio squeal | 24 |
| Cause of an attack | 18 |
| Cause of an artery blockage | 27 |