Answer: crackdown

AnswerCrossword Clue
CRACKDOWNHeightened enforcement
CRACKDOWNStern enforcement
CRACKDOWNBecome stricter (with "on").
CRACKDOWNNewly appointed disciplinarian's measure
CRACKDOWNPolice news
crackdownSevere measures to restrict or discourage undesirable or illegal people or behavior
crackdownthe taking of a firm action