IPA: /ˈraɪm.stər/
KK: /ˈraɪmˌstɚ/
A person who writes poetry, especially light or simple verse, often with a focus on rhyme.
The rhymester entertained the crowd with his playful poems.
Rhymester is formed from "rhyme" (from Old French *rime*, meaning a correspondence of sound) and "-ster" (a suffix used to denote a person associated with a particular activity). The word "rhymester" refers to a person who creates or composes rhymes.
Think of someone who creates sound correspondences ('rhyme') and the '-ster' suffix indicating a person involved in that activity. A rhymester is someone who makes rhymes.