Related Clues:

• Burn the surface, like a steak
• Cleaner vehicle filled with hydrogen
• One cleans fish
• Leave on the grill too long, maybe
• Necklace ornament*
• Grill for too long
• Blacken, as barbecue chicken
• Blacken a bit, as fish on a grill
• *Recipients of "Celebrity Jeopardy!" winnings