Possible Clues:

• Sentence fragment
• Reason student is inside for a bit of sentence
• Some words from Yuletide visitor being spoken
• Subdivision of a sentence
• Movement involving student as part of contract
• Part of contract must have principle written in Latin. Quite the reverse!
• Article's author taking line
• It's quite a full sentence
• Scratches said paragraph
• Part of sentence, as separately entered in this, for example