Possible Clues:

• Sharp or flat material
• Novelist familiarly known as author of Ravenshoe
• ___ and ivory
• Timber reordered by one
• Magazine with Barack and Michelle Obama on a 2007 cover with the caption 'America's Next First Couple?'
• It's not easily carved by one in a confused state
• Very dark wood
• Black durable hardwood
• Black Prince in the end pretty heartless
• Finally coppice thin wood