Possible Clues:

• It's not common to use around the North with Saul
• *Far from common
• Student Union in posh university principally aligned with Left? Extraordinary!
• Type of novel could be 29 across
• Rather odd university student organisation unable from time to time
• Uncommon, a French drink one normally orders
• Regularly loaded? That would not be normal
• Not commonly occurring
• Not habitual or common
• Remarkable; uncommon