I think I would mahe a distinction between clues given and answers - I wouldn't feel happy about submitting a solution if answers had been given. I never submit answers anyway, so the problem doesn't arise.
On the other discussion, I don't like puzzles where you have to muck about with your solution before writing it in - I never attempt those. I did once complete a Mephisto - to be fair, I haven't attempted many, as I don't take a Sunday paper. (When I don't have golf on Sunday morning, I do try the Everyman - I agree that it isn't what it was.)