Clinch

(boxing) the act of one boxer holding onto the other to avoid being hit and to rest momentarily

a small slip noose made with seizing

the flattened part of a nail or bolt or rivet

a device (generally used by carpenters) that holds things firmly together

a tight or amorous embrace

secure or fasten by flattening the ends of nails or bolts

hold a boxing opponent with one or both arms so as to prevent punches

hold in a tight grasp

embrace amorously

flatten the ends (of nails and rivets)

settle conclusively