Related Clues:

• It's a ball
• Orrery element
• Space ball?
• Sideless solid
• Baseball, but not football
• Poetic peeper
• Spherical shape
• Kingly symbol
• Bubble, essentially
• Earth, for one
• Poet's planet
• A basketball, but not a football
• Bubble, e.g.
• Sovereign's __ (one of the British Crown Jewels)
• Eye, poetically