| Founder of microbiology | 23 |
| Founder of Mesa Petroleum | 25 |
| Founder of Lower Slobovia | 25 |
| Founder of Lower Slobbovia | 26 |
| Founder of Little America | 25 |
| Founder of Kievan Russia | 24 |
| Founder of Jesuit order | 23 |
| Founder of General Electric | 27 |
| Founder of French opera | 23 |
| Founder of famed Academy | 24 |
| Founder of critical idealism | 28 |
| Founder of Christian Science | 28 |
| Founder of British India | 24 |
| Founder of Bad Boy Records | 26 |
| Founder of antiseptic surgery | 29 |
| Founder of an Oahu plantation | 29 |
| Founder of a musical dynasty | 28 |
| Founder of a French dynasty | 27 |
| Founder of a D.C. institute | 27 |
| Founder and queen of Carthage | 29 |
| Founded, on town signs | 22 |
| Founded, on cornerstones | 24 |
| Founded The Modern Lovers | 25 |
| Foundations support them | 24 |
| Foundations may support them | 28 |
| Foundations for some pizzas | 27 |
| Foundation, frequently | 22 |
| Foundation, as of an argument | 29 |
| Foundation strengthener | 23 |
| Foundation stone abbr. | 22 |
| Foundation or preparation | 25 |
| Foundation of some cultures | 27 |
| Foundation of broken stones | 27 |
| Foundation garment of yore | 26 |
| Foundation funders, sometimes | 29 |
| Foundation for something | 24 |
| Foundation for some roofing | 27 |
| Foundation for plaster | 22 |
| Foundation for many a dessert | 29 |
| Foundation builder, perhaps | 27 |
| Foundation abbreviation | 23 |
| Found, with "up" | 26 |
| Found, as tabloid fodder | 24 |
| Found, as a radio station | 25 |
| Found, as a new organization | 28 |
| Found, as a foundation | 22 |
| Found yet another owner | 23 |
| Found to be legal, in a way | 27 |
| Found painful to recall doing | 29 |
| Found out, British-style | 24 |
| Found another chair for | 23 |
| Found among these pages | 23 |
| Found after some effort | 23 |
| Found a spot, in a game | 23 |
| Found a new tenant for | 22 |
| Fouled-off pitch, perhaps | 25 |
| Foul-sounding container? | 24 |
| Foul-mouthed comic Lange | 24 |
| Foul-mouthed comedian Bob | 25 |
| Foul-mouthed bear of film | 25 |
| Foul, vulgar, abusive talk | 26 |
| Foul weather wear: Var. | 23 |
| Foul weather condition? | 23 |
| Foul caller on the court | 24 |
| Fought-over leftovers? | 22 |
| Fought vigorously to abolish | 28 |
| Fought like D'Artagnan | 26 |
| Fought it out, in Britain | 25 |
| Fought for one's honor | 26 |
| Fought at high noon, perhaps | 28 |
| Fought at dawn, perhaps | 23 |
| Fotheringham and Waxman | 23 |
| Foster, as a drug habit | 23 |
| Foster's river of song | 26 |
| Foster's faithfulfriend | 28 |
| Foster's dream girl | 23 |
| Foster with two Oscars | 22 |
| Foster son of the comics | 24 |
| Foster or Tilly of Hollywood | 28 |
| Foster home since 1982 | 22 |
| Foster Grant competitor | 23 |
| Foster Grant alternative | 24 |
| Foster father of King Arthur | 28 |
| Foster child, in Scotland | 25 |
| Foster "Home" | 23 |
| Fossilized marine animals | 25 |
| Fossilized hoax of 1912 | 23 |
| Fossil-rich tar pits in L.A. | 28 |
| Fossil-preserving spot | 22 |
| Fossil seashell derivative | 26 |
| Fossil resin used in jewelry | 28 |
| Fossil resin or its color | 26 |
| Fossil discovery of 1891 | 24 |
| Fossil container, sometimes | 27 |
| Fossey's fascination | 24 |
| Fosse's 1972 Oscar film | 27 |
| Forwent the bar and grill | 25 |
| Forwent consent, maybe | 22 |
| Forwarding service provider | 27 |
| Forwarding info on a letter | 27 |