Answer: kibosh

AnswerCrossword Clue
KIBOSHStopper, informally
kiboshto put an end to; squelch; check
kiboshnonsense
kiboshto put a stop to, also KYBOSH
KIBOSHSquelch, slangily
KIBOSHIt stops things when put on
KIBOSHRestraining element
KIBOSHPut the ... on
KIBOSHUnwelcome end with the
KIBOSHPut the .... on: stop
KIBOSHPut an end to, slangily
KIBOSHStop from happening
KIBOSHPut the -- on (squelch)
KIBOSHPut an end to
KIBOSHStopper of things
KIBOSHSquelch
KIBOSHPut the .. on: squelch
KIBOSHBlock; frustrate
KIBOSHStopper, slangily
KIBOSHReins, so to speak
KIBOSHStopper, with "the"
KIBOSHPut the ... on: squelch
KIBOSHIt's a stopper when it's put on
KIBOSHThe thing to put on that's a halter
KIBOSHIt serves as a stop, slangily
KIBOSHStopper
KIBOSHFigurative end
KIBOSHPut the ... on (stop)
KIBOSHPut the ... on (squelch)
KIBOSHPut the .. on: quash
KIBOSHPut the .. on: end
KIBOSHUnwelcome end, with "the"