Related Clues:

• ---- Knights (Black Sabbath)
• Gas used in some lights
• Nickname of Leon, the Spinks brother who won and lost to Muhammad Ali
• Gas weight overlooked by scientist
• Inert gas, symbol Ne
• It may illuminate Eugene O'Neill, a bit
• Bromine only contains one element
• Small plant; colour
• Lighting gas
• Lighting, indicating direction ahead?
• Fluorescent lighting gas
• An element disheartened, never let on
• Colourless noble gas
• Chemical element, often used in lights
• Broadway illumination