Possible Clues:

• Odd type of chain-mail found in waterway
• See 35-Down
• Time-saver with locks
• Is a half-century able to make this in a panama?
• Waterway preserve to which a fair number will go
• Martian feature
• One can start to barge around there
• Artificial waterway as at Panama (5)
• Manmade flower constructed from tin and aluminium
• Is a half-century able to have made way for water?