Crossword Genius

Element of ringtone jangled (8)

Ross

I believe the answer is:

nitrogen

'element' is the definition.
(chemical element)

'ringtone jangled' is the wordplay.
'jangled' is an anagram indicator (letters jangle around).
'ringtone' with letters rearranged gives 'NITROGEN'.

'of' acts as a link.

(Other definitions for nitrogen that I've seen before include "Atomic number 7" , "Common gas, N" , "Gas forming about four-fifths of atmosphere" , "Main element of air" , "Major constituent of air" .)

I've seen this clue in The Times.
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