Crossword Genius

Unimportant false alarm I emit (10)

Ross

I believe the answer is:

immaterial

'unimportant' is the definition.
(thesaurus)

'false alarm i emit' is the wordplay.
'false' indicates an anagram.
'alarm'+'i'+'emit'='alarmiemit'
'alarmiemit' with letters rearranged gives 'IMMATERIAL'.

(Other definitions for immaterial that I've seen before include "unimportant" , "of no importance" , "Irrelevant" .)

I've seen this clue in The Telegraph.
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