Crossword Clue:

consisting of six parts sexpartite

AnswerCrossword Clue
DUALConsisting of two parts
OCTUPLEConsisting of eight parts.
TRINARYConsisting of three parts.
BINARYConsisting of two parts.
TRINEConsisting of three parts
BOOKENDShelf prop ... or a hint to both parts of the answers to the six starred clues
STOP"Freeze!" ... or, when broken into three parts, how the answer for each of the six starred clues goes