Dressmaker

…When Western clothing became popular in modern times, tailors for Western clothes were born separately, and they were sometimes called “imported tailors.” [Motoo Endo] [Shinichi Suzuki]
[Western]
Generally, a tailor is someone who deals with men's clothing, and a dressmaker is someone who deals with women's clothing. Today, the profession of fashion designer (called couturier in French) has emerged, and fashion stores that design, sew, and sell fashion have become widespread.

*Some of the terminology that mentions "dressmaker" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…近代になって洋服が普及すると，洋服の仕立職人が別に生まれ，〈舶来仕立屋〉と呼ばれたこともある。【遠藤 元男】【鈴木 晋一】
［西洋］
　一般に男子服を扱うものをテーラーtailor，婦人服を扱うものをドレスメーカーdressmakerという。今日では，服飾デザイナー(フランス語ではクチュリエcouturier)の職種が現れ，デザイン，縫製，販売を行う服飾専門店が普及している。…

※「dressmaker」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報