Possible Clues:

• "Murder by __": Neil Simon comedy
• 'The last enemy'
• Narrator of "The Book Thief"
• Failure
• Thanatophobes' fear
• Done to __: repeated too often
• The Da follows 24 across
• That's the very last thing you'd expect from the Da
• ___ by chocolate (calorie-heavy dessert)
• ''--- in Venice''