Related Clues:

• Logic diagram
• Keep from escaping
• Ring bearer?
• Apple or pear
• Popular houseplant
• Bryologist's study
• See 51-Down
• Symbol of inactivity
• It may require surgery
• Swing site
• It has a bark but no bite
• Kind of squirrel
• Catbird seat?
• Death cup, e.g.
• Kind of surgeon