Try bulb son damaged in obdurate fashion (10)

I believe the answer is:

stubbornly

'in obdurate fashion' is the definition.
(I know this)

'try bulb son damaged' is the wordplay.
'damaged' is an anagram indicator.
'try'+'bulb'+'son'='trybulbson'
'trybulbson' is an anagram of 'STUBBORNLY'.

I've seen this clue in The Telegraph.

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