Possible Clues:

• Causing dramatic change
• Rare Darwinian novel
• Radically original
• Rebel going round in circles
• O, O, like them perhaps for a change
• Does one want to change in a roundabout way?
• Innovative
• Mistress turned out in a fancy coat of ruby red
• Cleric on trial you worked out to be subversive type
• 2008 melodrama starring Kate Winslet and Leonardo DiCaprio