Seeing 'ethereal' in a crossword clue usually nudges me toward synonyms like 'airy', 'diaphanous', 'heavenly', or 'otherworldly'. In practice that means I'm scanning my mental list for short, light-feeling words — 'airy' and 'aerial' are frequent suspects in quick puzzles, while 'diaphanous' or 'gossamer' might show up in more literary settings. It can also mean 'ghostly' or 'spiritual' depending on the clue's tone.
If the puzzle is cryptic, 'ethereal' often acts as a straight definition rather than a wordplay indicator, but it's clever to watch for alternate senses: 'ether' the chemical (so 'ether' or 'up in the ether') or even 'vaporous' ideas like 'misty'. I always check crossing letters early; they usually tell you whether the setter wanted a physical quality (light, airy) or a metaphysical one (spirit, celestial).
One time a setter used 'ethereal' to clue 'airy' with a playful surface about clouds, and the crossings made it obvious. Those little victories feel great—'ethereal' is one of those words that opens up a dozen gentle possibilities, and I love the way it changes the puzzle's mood.