Answer: harassing

AnswerCrossword Clue
HARASSINGGiving a hard time
HARASSINGNever leaving alone
HARASSINGBugging
HARASSINGBadgering
HARASSINGWearying by importunities.
HARASSINGOn one's case
HARASSINGMaking crank calls, e.g.
harassingMake repeated small-scale attacks on (an enemy)
harassingHARASS, to bother persistently
harassingSubject to aggressive pressure or intimidation