What is found divided at the starts and ends of nine answers in this puzzle (5,2,5)

I believe the answer is:

trick or treat

(Other definitions for trick or treat that I've seen before include "Unwelcome Halloween tradition" , "Halloween custom" , "Children's protection racket at Hallowe'en?" , "Halloween ordeal?" , "October 31 blackmail" .)

I've seen this clue in the King Feature Syndicate.

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