I'd be interested to see how last week's winners filled in the grid when, if you had 1A correct, you couldn't enter the correct answer to 2D, and vice versa.
Congratulations, AllanM. I got the correct answers but, on the grid, the "R" in "PARNASSUS" is on the same square as the first "A" in "ANTHRAX" so am flummoxed as to how anyone finished!