IPA: /ˈklɔːθɪə/
KK: /ˈklɔːθɪər/
A person or business that makes or sells clothes and fabrics.
The clothier helped me find the perfect suit for the wedding.
Clothier → It is formed from "cloth" (from Old English *clāþ*, meaning a woven fabric) and "-ier" (a suffix used to denote a person associated with a particular activity). A clothier is a person who makes or sells cloth or clothing.
Think of someone who works with 'cloth' — that's what a clothier does, they are a person associated with fabric and clothing.