Possible Clues:

• Daughter with little black anorak?
• (US) idiot
• One in with the out-crowd
• Nerd relative
• Eejit in America taken in by weel-faur'd wee bletherskate
• Square sort
• Inadequate person finally found new life, some job
• Dead small and born a fool
• American fool
• Zero-to-hero character, in film tropes