Related Clues:

• Miller - or answer, may be!
• Dirty - soiled
• Nickname for Miller
• Neglected and in need of a clean
• Dull (like a miller?)
• Mr Miller
• Miller needs second in what he should do
• Caked with crud
• Failing the white glove test
• Failing the white-glove test, say
• Covered with soot
• Boring job son's in
• Bibb or Burdon possibly
• Study in this unclean state?
• Covered in fine powder