Possible Clues:

• Piece of artwork
• Very keen to get one into art
• Being hurtful about Bogart's last picture
• It's just not in the paying guest to have a brush with you for this
• Putting on a coat when it's not in the inside
• Constable possibly showing signs of running, having nabbed one
• Work of art
• It's not in the inside with the paying guest on the outside
• See 4
• Work of a kind that's causing suffering over time