The term 'attractive person, informally' can be summarized by two crossword solutions: 'TEN' (3 letters) and 'LOOKER' (6 letters). The term 'TEN' is a slang term used to describe someone who is very attractive, usually referring to their physical appearance. The term 'LOOKER' is also used to describe someone who is attractive, but it can also refer to someone who is attractive in other ways, such as personality or intelligence.