na-adjective, noun
Describes a person, especially a child or young woman, who is endearingly playful, cheeky, or impish in a harmless way. Often used with な to modify nouns.
See also: 茶目
彼女はお茶目な笑顔を見せた。
She gave a mischievous smile.
その子はお茶目で、いつもいたずらばかりしている。
That kid is playful and always up to some prank.
noun
Refers to a person who is a playful trickster or joker. The noun use is less common than the adjectival use, but it appears in contexts like お茶目な人 or directly as お茶目.
彼はクラスのお茶目で、みんなを笑わせる。
He's the class prankster and makes everyone laugh.