Possible Clues:

• Line from which dart player throws
• The line from which dartplayer throws
• Line at which darts player stands to throw
• Line from which dart-player throws
• Line not to be crossed means nothing to guerrilla
• Some darts pro cheats, by overstepping this line?
• Old revolutionary making mark
• Behind which a darts player must stand
• What leads to court officials backing line that shouldn't be crossed
• Players' line from the start of Ode to a Revolutionary?