Brainiac, when you have completed the you then you should get a message asking you if you want to submit.That is after the message telling you the puzzle is correct.
Thanks Danny but it is a lot of faffing about clicking on this and that and scrolling about. I'd have to print off the crossword to do it. Can't beat books and papers in your hands. Got a Kindle as a present many years ago and its still in the box unused. Daughter bought me a smartphone for Christmas even though I said I didn't want or need one but she convinced herself I would love it. Its still in the box.