Possible Clues:

• Everyone knows it
• Person most people have heard of (2 words)
• Celeb gets Government Department to employ Henry — aged chap — to raise earl
• Famous (living) person
• A hem one should repair: everyone knows that
• Ali or Shaq, e.g. (2 words)
• One famous, but only within the family?
• Famous person or thing
• One famous family given title
• Within one's dwelling, handle so unfamiliar at first? That's unlikely!