AskOxford:
• Quick Crossword: December 2004
• Cryptic Crossword: December 2004
• Entire Crossword Archive

How clever is this?!
• CUSTOM CROSSWORD GENERATOR

Useful for solving crossword puzzle clues:
OneLook’s reverse dictionary lets you describe a concept and get back a list of words and phrases related to that concept. Your description can be a few words, a sentence, a question, or even just a single word.