As someone who does the Telegraph crosswords online, you know when you submit them that you have all the answers correct, so I can confirm both of the above.
You may be interested in the following blog which is run by author James Cary and gives hints and answers on a daily basis (with occasional help from yours truly!).
Hi Claire. Thank you for your aide memoire! For some unearthly reason I have just remembered who has my Victor Borge album and I never for, one moment, imagined I would be posting an entry like this on the site. Regards, Caravaggio.