Possible Clues:

• Devilish,evil
• Wicked and I can't, alas, reform
• A saint going off the rails termed 'not half wicked'
• Honing one's Catalan? It's really bad
• Wicked, and I can't, alas, reform
• Placed before an individual state, becomes evil
• It's a canal, crooked and black
• Hellish clan is at a disorderly assembly
• Devilish
• Extremely wicked