structural:reformatting
Other clue variations

Any type of puzzle may contain cross-references, where the answer to one clue forms part of another clue, in which it is referred to by number and direction. E.g., a puzzle might have 1-across clued as "Central character in The Lord of the Rings" = FRODO, with 17-down clued as "Precious object for 1-Across" = RING.

When an answer is composed of multiple or hyphenated words, some crosswords (especially in Britain) indicate the structure of the answer. For example, "(3,5)" after a clue indicates that the answer is composed of a three-letter word followed by a five-letter word. Most American-style crosswords do not provide this information.