Possible Clues:

• They have to have Leslie, and they have a point there
• Narks, being redundant, tail off
• Nettles, not wanted, cut down
• Pins ribs
• Annoys the French following demand
• Little boy supports requirement for sewers
• Almost completely pointless hypodermics
• IoW rocks
• The point of them is that they're all one-eyed
• Christmas tree debris