Related Clues:

• "Safe!" or "Out!"
• Umpire's ruling
• ___ and response ('human microphone' technique at Occupy Wall Street)
• Summons, with ''for''
• Word with "role" or "house"
• Leaves to turn
• Thing often dropped in a tunnel
• Summons electronically
• Makes noise like the Road Runner
• Order in the court for one telling a joke about the 6th of January
• Be an umpire
• Summonses a book collection
• One may be close
• Court command
• Telephone made from aluminium coated in chlorine