trouser clip(n = noun.artifact) bicycle clip - a clip worn around a cyclist's ankles that keeps trousers from becoming caught in the bicycle chain;
is a kind of clip

alligator clip, bicycle clip, bulldog clip, cartridge clip, clip, clip art, clip artist, clip joint, clip lead, film clip, gem clip, paper clip, pincurl clip, roach clip, tie clip, trouser, trouser cuff, trouser leg, trouser press