In court, one questions angry inspector (5-8)

I believe the answer is:

cross-examiner

'in court one questions' is the definition.
(the interrogator of the witness in a court)

'angry inspector' is the wordplay.
'angry' becomes 'cross' (I've seen this before).
'inspector' becomes 'examiner' ('examiner' can be a synonym of 'inspector').
'cross'+'examiner'='CROSS-EXAMINER'

(Another definition for cross-examiner that I've seen is " One questioning a witness".)

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