Possible Clues:

• Offer of cheap goods, including black fur
• Black northern town, black at its very heart
• Bales of rich fur
• Scan, perhaps, what is furry in the dark
• Black - fur
• Perhaps scan the start of 10 across
• Island's turning black
• Black can opener is mislaid
• One buck is enough to keep it in the black
• Fur for heraldic black