Crossword puzzle clue "sioux chief and what can be found in the circled squares"

Sioux chief (and what can be found in the circled squares?)

"See also" notations ... or what can be found in the circled squares in this puzzle?

Novella whose final words are found in the circled squares

Sioux Falls to Sioux City: abbr.

Where GIs fought Charlie[LAST WEEK: "Lady X" was Ingrid Bergman, whose first name is revealed in the circled squares (IN + GRID). Seven of her one-word movie titles can be seen "straddling" black squa

Up-and-comers, and what the circled squares contain

Somewhat suspect (and a hint to what can be found by connecting the circled letters in alphabetical order)

Like many teen girls, and a literal hint to this puzzle's circled squares