Crossword Genius

Discovered I end diet if upset (10)

Ross

I believe the answer is:

identified

'discovered' is the definition.
('identify' can be a synonym of 'discover')

'i end diet if upset' is the wordplay.
'upset' is an anagram indicator.
'end'+'diet'+'if'='enddietif'
'enddietif' anagrammed gives 'dentified'.
'i'+'dentified'='IDENTIFIED'

(Other definitions for identified that I've seen before include "Recognized" , "Recognised, named" , "Pointed out; made known" , "Given name" , "Put one's finger on" .)

I've seen this clue in The Telegraph.
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