Possible Clues:

• Place for a lock
• Duct made of tin and aluminium
• Alimentary ___
• Lock locale
• Sounds as if Sue is one that has a lock
• Locks locale
• Miraculous place with loch and waterway!
• Vessel has a litre - this has much more water
• Is a half-century able to get along with this by way of water?
• Creation by a locks smith?