Related Clues:

• Alpha, e.g.
• Canopus or Aldebaran
• Great ball of fire
• Principal
• Leading
• Tree decoration
• Symbol on a Cowboy's helmet
• Polaris, e.g.
• Ratings unit
• Kind of witness
• General acquisition
• See 48-Across
• Award for a good student
• Common flag feature
• Symbol on a phone button