[n] a writer who composes rhymes; a maker of poor verses (usually used as terms of contempt for minor or inferior poets)
poetiser - (4 syllables), poetizer - (4 syllables), rhymester - (2 syllables), versifier - (4 syllables)
\Rhym"er\, n. One who makes rhymes; a versifier; -- generally in contempt; a poor poet; a poetaster. This would make them soon perceive what despicaple creatures our common rhymers and playwriters be. --Milton.