The term 'fanatic fan' can be broken down into two crossword solutions: NUT (3 letters) and FREAK (5 letters). A fanatic fan is someone who is extremely passionate and devoted to a particular person, team, or cause. They are often seen as being overly enthusiastic and sometimes even obsessive about their interests. They may also be willing to go to great lengths to show their support, such as attending every game or wearing the same team colors every day. In short, a fanatic fan is someone who is deeply devoted to something and will do whatever it takes to show their loyalty.