Crossword Genius

Fire because of a police inspector's allegation? (9)

Ross

I believe the answer is:

discharge

I'm a little stuck... Click here to teach me more about this clue!

'fire' is the definition.
(I know that fire can be written as discharge)

'inspector's allegation?' is the wordplay.
'inspector's' becomes 'di's' (abbreviation for Detective Inspector).
'allegation?' becomes 'charge' (allegation is a kind of charge).
'dis'+'charge'='DISCHARGE'

'because of a police' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for discharge that I've seen before include "Send away - perform" , "Fire (a gun); release from custody" , "unload" , "Fire (gun); sack (worker)" , "Performance" .)

I've seen this clue in the Evening Standard.
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