Somewhat offended if I certify building (7)

I believe the answer is:

edifice

'building' is the definition.
(I know that building can be written as edifice)

'somewhat offended if i certify' is the wordplay.
'somewhat' says the answer is hidden in the clue.
'EDIFICE' is hidden within 'offended if i certify'.

(Other definitions for edifice that I've seen before include "Fine building" , "Permanent building" , "Construction" , "Monument" , "Impressive building" .)

I've seen this clue in The Times.

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