Related Clues:

• Kind of court or school
• When most people retire
• Bedtime call, informally
• From dusk to dawn
• Busy time for fireflies
• Sack time
• When many people retire
• Day follower
• Dracula's waking hours
• Word with club or stick
• When bats fly
• Dracula's time
• Dusk-to-dawn period
• See 6 Across
• See 21 Across