There's a message in theforum about the acrostic:
TLS Acrostic for 20 April 2012
posted 20/04/12 13:17
Quote >This is to let you know that there is currently a technical problem preventing this puzzle from being added to this site. Work is in hand to fix the problem.
Peter Biddlecombe
Sunday Times Crossword Editor
- Maybe same is true for the normal crossword