Answer: interposes

AnswerCrossword Clue
INTERPOSESCuts in.
INTERPOSESComes between.
interposesPlace or insert between one thing and another
interposesINTERPOSE, to place between
interposesIntervene between parties
interposesSay (words) as an interruption
interposesExercise or advance (a veto or objection) so as to interfere