Possible Clues:

• It helps one see clearly what's rubbish
• Rubbish in middle of field by two trees
• Hole used to be hard? Rubbish!
• The Spectator's solution is nonsense too
• Optic lotion — nonsense!
• A bunch of hooey
• Rubbish containing earth and trees
• We say he spilled rubbish
• Claptrap from detective was hard to follow
• What the critics wrote about Edward Driffield, according to Maugham