Horse's constraint (4)
I believe the answer is:
rein
(Other definitions for rein that I've seen before include "Restraining lead" , "Part of tack" , "Controlling strap" , "Animal controller" , "Restriction" .)
I believe the answer is:
rein
(Other definitions for rein that I've seen before include "Restraining lead" , "Part of tack" , "Controlling strap" , "Animal controller" , "Restriction" .)