Related Clues:

• The Paris underground system
• Parisian underground railway
• The underground railway system in Paris
• Regret the herb?
• Feel sorry
• That's the attempt of the little car to get into church
• Leaves with bitter regret
• You may wear yours with a difference, but you'll regret it
• A little tea in Rome under Paris
• Herb might regret this
• From Herb, with regret
• One could be sorry for the start of 7 down, by the sound of it
• How one might regret having a pouch, by the sound of it
• One may regret that it's in Australia, by the sound of it
• Herb might regret being in Australia, by the sound of it