Answer: bustup

AnswerCrossword Clue
BUSTUPParting of ways
BUSTUPDestroy, as property in a brawl
BUSTUPInterrupt, as a double play
BUSTUPSmash to bits
BUSTUPDemolish
BUSTUPTotally destroy
BUSTUPBreak off, as a friendship: Slang.
BUSTUPPart company: Slang.
BUSTUPBreak into parts, as a monopoly
BUSTUPDivorce