Giving notice, detective's not able to be located (10)

I believe the answer is:

dismissing

'giving notice' is the definition.
(both can mean dismissing from a job)

'detective's not able to be located' is the wordplay.
'detective's' becomes 'dis' (Detective Inspector abbreviation).
'not able to be located' becomes 'missing'.
'dis'+'missing'='DISMISSING'

(Another definition for dismissing that I've seen is " Brushing off".)

I've seen this clue in The Telegraph.

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