| Starter for lith or scope | 25 |
| Starter for laryngology | 23 |
| Siouan-speaking tribe | 21 |
| Siouan speaker of Oklahoma | 26 |
| Siouan speaker from Oklahoma | 28 |
| Siouan of Nebraska | 18 |
| Siouan of Neb. | 14 |
| Siouan in Okla. | 15 |
| Relatives of the Iowa | 21 |
| Prefix with scope or sclerosis | 30 |
| Prefix meaning “ear” | 28 |
| Prefix for an ear doctor | 24 |
| Prefix denoting the ear | 23 |
| Prefix (to do with hearing) | 29 |
| Platte River Valley figure | 26 |
| Plains Amerind | 14 |
| People met by Lewis and Clark | 29 |
| Palindromic tribesman | 21 |
| Palindromic North American Indian | 33 |
| Palindromic Nebraska native | 27 |
| Palindromic Amerind | 19 |
| Onetime dweller along the Platte | 32 |
| Nebraskan Amerind | 17 |
| Neb. Sioux | 10 |
| Native Oklahoma tribe | 21 |
| Native American near the Platte | 31 |
| Missouri relative | 17 |
| Member of the Winnebago | 23 |
| Language akin to Iowa | 21 |
| Intro to laryngology | 20 |
| Indian whose tribe's name means "lovers of sexual pleasure" | 73 |
| Indian tribe encountered by Lewis and Clark | 43 |
| Indian or West | 14 |
| Hearing-related prefix | 22 |
| Hearing opening? | 16 |
| Fox tribe neighbor | 18 |
| Ear, in combination | 19 |
| Ear-relevant prefix | 19 |
| Ear-relevant opener | 19 |
| Ear opener? | 11 |
| Chiwere dialect | 15 |
| Chief Chono Ca Pe, e.g. | 23 |
| Certain Siouan | 14 |
| Bismarck, doubled-up? | 21 |
| A native American | 17 |
| ___-Manguean (Indian language group) | 36 |
| Nebraska City's county | 26 |
| Sooner State native | 19 |
| Pawnee ally | 11 |
| Midwest Indian | 14 |
| Oklahoma tribe member | 21 |
| Missouri River tribe | 20 |
| Missouri River native | 21 |
| County in Neb. | 14 |
| Winnebago relative | 18 |
| Pawnee's friend | 19 |
| Kiowa's cousin | 18 |
| A member of the Siouan people | 29 |
| Winnebago offshoot | 18 |
| Tribe related to the Iowa | 25 |
| Tribe met by Lewis and Clark | 28 |
| Sooner State tribe | 18 |
| Sioux speaker of Oklahoma | 25 |
| Platte River Indians | 20 |
| Oklahoma tribesman | 18 |
| Nebraska county | 15 |
| Missouri Valley tribesman | 25 |
| Ally of the Missouri | 20 |
| Tribe in the Winnebago nation | 29 |
| Speaker of Siouan | 17 |
| Speaker of a Siouan language | 28 |
| Sioux speakers | 14 |
| Sioux branch | 12 |
| Platte Valley figure (Var.) | 27 |
| Platte River Sioux | 18 |
| Platte River Indian | 19 |
| Part of the Winnebago nation | 28 |
| Nebraska tribe (Var.) | 21 |
| Nebraska Sioux | 14 |
| Nebraska county with an Indian name | 35 |
| Nebraska county whose seat is Nebraska City | 43 |
| Nebraska county that borders Iowa and Missouri | 46 |
| Nebraska county named for a tribe | 33 |
| Missouri's ally, once | 25 |
| Missouri relatives | 18 |
| Missouri Indian relative | 24 |
| Member of the Winnebago nation | 30 |
| Iowa native | 11 |
| Indian of Oklahoma | 18 |
| Group that split from the Winnebago | 35 |
| First tribe met by Lewis and Clark | 34 |
| Cousins of the Winnebago | 24 |
| Cousin of a Missouri | 20 |
| Chief Whitehorse, e.g. | 22 |
| Winnebago separatists | 21 |
| Winnebago nation tribe | 22 |
| Tribe that's kin to the Iowa | 32 |
| Tribe that once joined with the Missouri | 40 |
| Tribe speaking Chiwere | 22 |
| Tribe related to the Missouria | 30 |