dandy; dude; fashionable man
Refers to a man who is stylish, well-dressed, and often somewhat showy or flamboyant. Can carry a slightly old-fashioned or literary flavor.
彼はいつも洒落た服を着ている伊達者だ。
He's always a dandy, wearing stylish clothes.
あの伊達者
That dude has a good sense of hats.
洒落者 also means a stylish or witty person, but is more common in modern usage and less specifically tied to flamboyant dress.
Standard kanji spelling.
Mixed kana-kanji spelling sometimes seen.
Katakana variant, uncommon.
Formed from 伊達, “showy or stylish dress and behavior,” and 者, “person,” denoting a fashionable or ostentatious man.