Possible Clues:

• Claret's rough colour?
• The sort of runner that might get a mark to allow it a shade of a finish
• Colour of embarrassment?
• Would Mark let one look like the start of 8 down?
• Red colour of clarets
• Color in a Hawthorne title
• Bright red of clarets
• Let cars be this colour
• Like a tanager
• Bright red mark on body was a hindrance once