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; for example, the word outing is contained in the seventh, eighth and ninth words of the sentence "It costs money to keep a runabout in gas, every young man soon learns." If this sentence were presented as the clue, the solution would be relatively simple. Instead, the word is removed from the sentence, and a new clue sentence (or set of sentences) is formed using the remaining letters in the same order; for example, "It costs money to keep a run, a base very young man soon learns (6)."
Theimer, Ernst T.
"A Charade Crossword,"
Word Ways: Vol. 3
, Article 12.
Available at: http://digitalcommons.butler.edu/wordways/vol3/iss3/12