Possible Clues:

• University student
• Student
• Maybe BA trainee urged dear aunt to travel around
• Unexpected turn — gear ad due to show student
• Student can show unusually guarded nature
• Student outside university arranged duet to be broadcast
• Student — a Red Guard tune (anag)
• Strangely guarded nature seen in student
• Stupidly argued with nude art student
• Student’s unusually guarded nature