Crossword puzzle clue "bar locking a capstan in place"

a lever which engages with a ratchet wheel so as to permit movement in one direction only

to run away

a medieval peasant inhabiting a cottage, also COTTAR, COTTIER

any stop or catch in a machine which prevents a motion until released, e.g. on a crossbow

DETENT, any stop or catch in a machine which prevents a motion until released, e.g. on a crossbow