Just seen a post re Chambers Word Wizard - hadn't seen it before, looks like a jolly useful program.
It reminded me, I bought Crossword Maestro ages ago, and stopped using it because it was too good! It solves Times & Guardian cryptic clues half the time, and has a word search with wild cards too. You can actually put the whole crossword into it, and it solves quite a lot without human intervention.
I've got it working with Windows 7, but don't intend to use it.
If anyone wants to send me a sample clue with the word length and any letters you have, I'd be happy to run it and post the results.
Another good utility is the full OED online - In Manchester, I can access it at home with my library ticket number.
I'll try those sites and CM with a couple of Grauniad ot Times Cryptic, and see how they tackle them. If you want to give me a clue to try, I'll check back in a bit...