Crossword Genius

Crew needing altitude without hydrogen (5)


I believe the answer is:


'crew' is the definition.
(I've seen this before)

'altitude without hydrogen' is the wordplay.
'altitude' becomes 'height' ('height' can be a synonym of 'altitude').
'without' suggests deleting specific letters.
'hydrogen' becomes 'h' (H is the chemical symbol for hydrogen).
'height' with 'h' taken away is 'EIGHT'.

'needing' acts as a link.

(Other definitions for eight that I've seen before include "Two cubed" , "Number etched by a skater?" , "Cube of two" , "Where arrogance is needed" , "Cube root of five hundred and twelve" .)

I've seen this clue in The Telegraph.
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