Phrase. to tread on any one's heelsor toes (also figurative); see the nouns.

To attach oneself for support; to cling, hold fast, adhere. To stick close, so as not to leave or let go.

intransitive. Frequently with at, on, etc. To follow in close pursuit of a person or thing; (figurative) to harass, hound, or worry a person; to…

To trail or drag behind; to follow closely, follow in one's train. Frequently const. after, along, (a)round, on. Also figurative.

Phrases. to be on someone's tail and variants, to follow or pursue someone closely (see also quot. 1925). Also figurative.

to be on someone's wheel: to be close behind someone, to be on his track; to put pressure on someone (to do something). slang (chiefly Australian).