This phrase likely refers to a crossword clue where the answer is a word or phrase signifying a week-long journey by air. A typical example might be a clue like “Trip by plane for a week” with the answer being “SEVEN-DAY FLIGHT” or a similar construction. The clue’s difficulty would depend on the surrounding clues and the overall complexity of the puzzle.
Such clues combine general knowledge with wordplay, engaging solvers to think both literally and laterally. The use of a specific time frame, like seven days, adds a layer of complexity, requiring solvers to consider words or phrases related to duration within the context of air travel. This type of clue can be particularly challenging in cryptic crosswords where the clue may contain puns, anagrams, or other wordplay elements. Ultimately, successfully solving such clues contributes to the enjoyable mental exercise that crosswords provide.