Of all crossword puzzles, I find the charade crossword the most enjoyable. in this type of crossword, the clues do not directly define the word to be found. The word is buried as a charade in a sentence.
"One More Charade Crossword,"
Word Ways: Vol. 18
, Article 12.
Available at: http://digitalcommons.butler.edu/wordways/vol18/iss3/12