Answer: crampon

AnswerCrossword Clue
CRAMPONClimber's gear
CRAMPONSki boot attachment
CRAMPONMountain climber's footwear
crampondevice for grasping and lifting heavy loads, usually consisting of a pair of hooks suspended from a chain or cable, the upward pull on which provides tension for the hooks to grip the load on opposite sides
cramponspiked iron plate worn on boots or shoes for aid in climbing or to prevent slipping on ice, snow, etc.
crampona mountain climbing hook / to climb using crampons