This phrase doubtless refers to a crossword clue the place the reply is a phrase or phrase signifying a week-long journey by air. A typical instance may be a clue like “Journey by aircraft for every week” with the reply being “SEVEN-DAY FLIGHT” or the same building. The clue’s problem would depend upon the encompassing clues and the general complexity of the puzzle.
Such clues mix common data with wordplay, partaking solvers to suppose each actually and laterally. The usage of a particular timeframe, like seven days, provides a layer of complexity, requiring solvers to think about phrases or phrases associated to period throughout the context of air journey. This sort of clue may be significantly difficult in cryptic crosswords the place the clue could comprise puns, anagrams, or different wordplay parts. In the end, efficiently fixing such clues contributes to the pleasant psychological train that crosswords present.