Crossword Genius

Rough diamonds seen in charge (6)

Ross

I believe the answer is:

office

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'charge' is the definition.
(thesaurus)

'rough diamonds' is the wordplay.
'rough' becomes 'off' (I can't explain this - if you can you should give a lot more credence to this answer).
'diamonds' becomes 'ice' (slang term for diamonds).
'off'+'ice'='OFFICE'

'seen in' acts as a link.

Can you help me to learn more?

(Other definitions for office that I've seen before include "Subsidiary" , "Position in government?" , "Administrative unit" , "Place for administrative business" , "Room for working" .)

I've seen this clue in The Telegraph.
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