An anagram is a word formed by rearranging all the letters of another word, using each letter exactly once. These words use every letter from "OSRLELP":
One who polls; specifically: (a) One who polls or lops trees. (b) One who polls or cuts hair; a barber. [R.] (c) One who extorts or plunders. [Obs.] Baex. (d) One who registplws votplws, or one who enters his name as a voter.