Related Clues:

• Bees' nest
• Insects' home — site of much activity
• A queen's home?
• Home for bees
• Many people in the same place, on Foursquare
• Act like the birds in "The Birds"
• Buzz source
• Busy home
• Workers' place
• Group in a hive
• Honeybunch?
• Home for 27-Across
• Ant army
• Apiary house
• Where a small queen resides