Related Clues:

• Whodunit blueprint
• Humorist's tool
• Surface for gardening
• Conspire (against)
• ''The ___ thickens''
• It may be tragic
• Sardonic literary device
• Tongue-in-cheek quality
• O. Henry literary device
• It thickens after a while
• Collude
• Small area of ground
• Subtle sarcasm
• It features a twist
• Be scheming