Related Clues:

• Biology or chemistry
• Quarter honoree
• Union representative
• Indiana, for one
• __ fair
• Learning
• School course
• Country place?
• Name hidden in 17- and 56-Across and 11- and 28-Down
• __ visit
• A star represents it
• Vermont or Virginia
• It can be social or natural, e.g.
• Durango or Delaware
• Spock's field