ちょっとした (quite a / something of a)
grammar3 sentences
The attributive frame ちょっとした (literally 'a-little-did'), modifying a noun to mean 'quite a, something of a, a decent X' (with positive nouns) or 'a minor, slight X' (with neutral/negative nouns). Polarity is context-driven: ちょっとした邸宅 ('quite a fine mansion'), ちょっとした問題 ('a minor issue').