Crossword Genius

Angry collier holds chopper coming back for barrister (5-8)

Ross

I believe the answer is:

cross-examiner

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

'barrister' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'angry collier holds chopper coming back' is the wordplay.
'angry' becomes 'cross' (cross can mean annoyed or angry).
'collier' becomes 'miner' (I've seen this before).
'holds' means one lot of letters goes inside another.
'chopper' becomes 'axe' (something which chops).
'coming back' says the letters should be written backwards.
'axe' backwards is 'exa'.
'cross'+'miner'='crossminer'
'crossminer' going around 'exa' is 'CROSS-EXAMINER'.

'for' is the link.

Can you help me to learn more?

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

I've seen this clue in The Independent.
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