An Ex in the Puzzle

I’m Tracy Belden. Creating crossword puzzles is my passion. But it doesn’t pay the rent.
Being a part-time PI does. My current case is about a missing woman, my ex-husband’s second wife.
There’s no proof she’s dead. Or that my ex-husband killed her.
I have to admit, I’m not particularly interested in clearing his name.
What’s important is… solving the puzzle.