Possible Clues:

• Prune from France is sweeter than the others
• Most quaint
• Something absolutely adorable, with 'the'
• The cleverest of them all from college and university on trial
• Smartest copper brought to trial
• Most darling
• Maximally adorable
• The cleverest of them all removes Spring from press cutting
• Most sweet and endearing
• Coveted role in a boy band