Possible Clues:

• Clinton's tool for pulling?
• Note eye-catching gadget for pruning
• I'll prune Spooner's volume on fell-walking?
• William gets eye-catching gadget that's for pruning
• Tree-pruning tool
• Mini-scythe
• William the pirate armed with it?
• Cutter sick harbour-master originally kept in reserve
• Implement for bringing pirate to account
• Note eye-catching gadget - it's for pruning