It's a battle that was lost long ago but there are some pedants still who object to the use of "due to" in that clue. It should say "because of" or "owing to" instead.
If you want to use "due to" the clue should be rephrased as:
The withdrawal of the article on sex was due to church, once.
Or maybe:
Due to church, the article on sex was withdrawn.
But then the clue might not work.
"Due", as an adjective, needs a noun to go with, and that is "withdrawal".