I can't believe I had to learn about this from Language Log:
Over on OUPblog, the blog for Oxford University Press (where I also hang my hat), today's launching of the sixth edition of the Shorter Oxford English Dictionary is being celebrated cruciverbally. The creators of Jonesin’ Crosswords, whose puzzles appear in alternative weeklies around the country, have contributed a crossword in which the long entries were selected from among the 2,500 words and phrases new to the sixth edition.