Possible Clues:

• Doesn't use
• Used to be set up via the sinks
• It did be the end of 23 across to have gone to loss
• Barren stretches
• Open spaces down the drains
• Destroys the west, and the east's beaten
• Throws away local blow - it's the last of the cannabis!
• Doesn't use efficiently
• Was set back and deserts
• Expends for no reason