Crossword Genius

Disobey -- stress gran out (10)

Ross

I believe the answer is:

transgress

'disobey' is the definition.
(thesaurus)

'stress gran out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'stress'+'gran'='stressgran'
'stressgran' with letters rearranged gives 'TRANSGRESS'.

(Other definitions for transgress that I've seen before include "Go beyond (legal) limits" , "Overstep, exceed" , "Commit a sin" , "Break (limit, law)" , "commit offence" .)

I've seen this clue in The Telegraph.
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