Answer:

pawnee

Answer	Crossword Clue
PAWNEE	Plains tribesman
PAWNEE	Plains Indian
PAWNEE	Nebraska native

PAWNEE	Platte River valley native
PAWNEE	Oklahoma tribe
PAWNEE	Fictional Indiana town in "Parks and Recreation"
PAWNEE	Nebraska Indian
PAWNEE	Oklahoma Indian
PAWNEE	"Dances With Wolves" foe
PAWNEE	Indian of Oklahoma.
PAWNEE	Indian of the Wild West.

PAWNEE	... Bill.
PAWNEE	Enemy of the Cheyenne.
PAWNEE	Plains Indian.
PAWNEE	Indian.
PAWNEE	Indian confederation.
PAWNEE	Nebraska Indian.
PAWNEE	Cheyenne's foe
PAWNEE	Group now living in Oklahoma

PAWNEE	Okla. city or county
PAWNEE	Foe of a Cheyenne
PAWNEE	Caddoan Indian
PAWNEE	Dweller along the Platte
PAWNEE	Foe of the Sioux
PAWNEE	Indian in a tepee
PAWNEE	Plains tribe
PAWNEE	Fictional Indiana town where "Parks and Recreation" is set

PAWNEE	Native Oklahoman
PAWNEE	Indiana town where "Parks and Recreation" takes place
PAWNEE	Native American of the Platte River valley
PAWNEE	"Dances With Wolves" tribe
PAWNEE	"Dances with Wolves" enemy
PAWNEE	Nebraska natives
PAWNEE	Sioux enemy
PAWNEE	Oklahoma native

PAWNEE	Enemy of the Sioux
PAWNEE	Sioux foe
PAWNEE	Foe of the Cheyenne