noun
fashionable person; stylish person
A casual, slightly affectionate term for someone who is well-dressed or fashion-conscious. Often used in a lighthearted or teasing way.
See also: おしゃれ
彼女はいつもおしゃれさんだね。
She's always so stylish, isn't she?
今日は一段とおしゃれさんですね。
You're looking especially fashionable today.
おしゃれ is a na-adjective or noun meaning 'fashionable' or 'stylishness', while おしゃれさん specifically refers to a person who is fashionable.
Derived from おしゃれ (fashionable) with the honorific/person suffix さん, literally 'Mr./Ms. Stylish'.