Answer: quelling

AnswerCrossword Clue
QUELLINGActivity of conquerors or pacifiers
quellingSuppress (a feeling, esp. an unpleasant one)
quellingPut an end to (a rebellion or other disorder), typically by the use of force
quellingQUELL, to subdue (to bring under control, also SUBDEW)
quellingSubdue or silence someone