Related Clues:

• Saturn, for one
• Astronomer's sighting
• Music genre
• 5-Down, for example
• Grammy category
• Copper, e.g.
• Brass or bronze
• Sun circler
• Vulcan, for one
• Jupiter, e.g.
• Rock variety
• Saturn or Mercury
• See 31-Across
• Smith's medium
• Mars, e.g.