Someone or something that you want to get rid off but really can't.
This someone or something is so annoying that it drives you crazy but still you've gotten attached to it and you can't live without it.
On one hand there's something about her that makes me want to spend all my time with her but on the other hand I know it's not the best thing for me. She's a real Wart.
A journalistic tool primarily used in a profile piece. The wart adds human flaws and characteristics to the story, so the piece doesn't come off as being unbiased and promotional. This will show the person's shortcomings. Warts could address serious concerns, or add a sense of humor to the piece.
Use the person's criminal record as a way to add a wart to the story.