Inspector, formerly a Bevin Boy? (8)

I believe the answer is:

examiner

'inspector' is the definition.
('examiner' can be a synonym of 'inspector')

'formerly a bevin boy?' is the wordplay.
'formerly' becomes 'ex'.
'bevin boy?' becomes 'miner' (I've seen this before).
'ex'+'a'+'miner'='EXAMINER'

(Other definitions for examiner that I've seen before include "Tester of knowledge" , "Test setter" , "bloke who will make inspection" , "One who tests, inspects or inquires into" , "Tester or inspector" .)

I've seen this clue in The Telegraph.

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