Related Clues:

• Appends
• Enters, but just barely
• Just barely places
• Includes
• Sidles through a doorway
• Adds
• Manages to add
• Enters stealthily
• Enters carefully
• Adds to
• A nail my boy adds
• Yacht heading my boy adds later
• Adds "What's horse's gear called, dad?"
• Makes last-minute room for, as an agenda item
• Parallel parks, perhaps