Related Clues:

• Honest-to-goodness
• Colorful tropical fish
• Steadfast
• Gas for a Broadway ad
• Inert gas
• Glowing sign
• Inert element used in lights
• Hardly pastel
• ___ to one's word
• Type of lamp
• It may say 'DINER'
• Gas in some bulbs
• Strip lighting
• Legitimate
• Light gas?