Answer: bollix

AnswerCrossword Clue
BOLLIXPut into disorder
BOLLIXCompletely bungle
BOLLIXMess (up)
BOLLIXBungle, with "up"
BOLLIXFoul (up)
BOLLIXFlub, with "up"
bollixconfused bungle
bollixto make a mess of, also BALLOCKS, BOLIX, BOLLOCKS, BOLLOX
bollixto do something badly; bungle.
bollixto do (something) badly; bungle (often fol. by up)