Meanings
Usage patterns
〈場所〉に仕切りを入れるto put a partition into a place
We put a partition in the room to divide it into two.
仕切りをするto settle accounts
We settle accounts with our business partners at the end of the month.
仕切りに入るto take the pre-bout stance (in sumo)
The wrestlers took their positions for the pre-bout ritual.
仕切りを任されるto be entrusted with running/directing something
Even though he's new, he was put in charge of directing the event.