Possible Clues:

• Greek character seen going north, set off
• Some found Eton a terrific blast!
• Set off to take the key back within the specified time
• Set off with father around English college with Lawrence
• Greek character celebrated in return, having set off
• Let off partner accepting rejected attention
• Let off 10 'characters' in a row in court
• Set off from posh school, getting into Escort
• Daughter had dinner after school and set off
• Meeting outside of college, set off