Fangirl

3 clues
Certain geek
Belieber, say
Obsessive young devotee
Similar answers:
Afan
Afanof
Afatfreefanatic
Afternoonofafan
Agegirl
Agentsofanarchy
Ageofanxiety
Agirl
Agirlineveryport
Agirllikei
Agirls
Ahorseofanothercolor
Alittlegirl
Allamericangirl
Allgirl
Americangirl
Andfan18times
Andyouwantaninfantto
Anotherfanmess
Aofanothercolor