Crossword Genius

Take all the pieces away from journalist upset with what the editor gave her (12)

Ross

I believe the answer is:

decommission

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

'take' is the definition.
Both the definition and answer are verbs in their base form.
Maybe there's an association between them I don't understand?

'all the pieces away from journalist upset with what the editor gave her' is the wordplay.
I cannot quite see how this works, but
'from' could be 'o' (I've seen this in other clues) and 'o' is present in the answer.
'her' could be 'issi' and 'issi' is found in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Another definition for decommission that I've seen is " Take (eg, a warship) out of operation".)

I've seen this clue in The Irish Times and the Irish Times (Crosaire).
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