Hostility halter (4)
I believe the answer is:
pact
(Other definitions for pact that I've seen before include "Written agreement between two states" , "deal" , "Agreement, bargain" , "International treaty" , "Treaty, formal agreement" .)
I believe the answer is:
pact
(Other definitions for pact that I've seen before include "Written agreement between two states" , "deal" , "Agreement, bargain" , "International treaty" , "Treaty, formal agreement" .)