Possible Clues:

• Cleanser or a reindeer
• Stellar sight
• Start to arrive after moving around in space
• Small extraterrestrial body
• Halley discovered one
• Dancer's colleague may appear a bright star
• That's me in bed with a tail - how heavenly!
• Firm satisfied with traveller covering huge mileage
• Streaker with a big tail
• Astronomer's observation