Answer: interrupts

AnswerCrossword Clue
INTERRUPTSHeckles, say
interruptsINTERRUPT, to break in between
interruptsStop (someone speaking) by saying or doing something
interruptsBreak the continuity of (a line or surface)
interruptsObstruct (something, esp. a view)
interruptsStop the continuous progress of (an activity or process)