Crossword Genius

One manufacturing nitrogen gas (4)

Ross

I believe the answer is:

neon

'gas' is the definition.
(neon is a gas)

'one manufacturing nitrogen' is the wordplay.
'manufacturing' indicates an anagram.
'nitrogen' becomes 'N' (N is the chemical symbol for nitrogen).
'one' is an anagram of 'neo'.
'neo'+'n'='NEON'

(Other definitions for neon that I've seen before include "None (anag.)" , "illuminating agent" , "Could it brighten proceedings" , "Inert gas, symbol Ne" , "Sign gas" .)

I've seen this clue in the Sydney Morning Herald.
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