Crossword Genius

Something refined brought back from Ragusa (5)

Ross

I believe the answer is:

sugar

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

'something refined' is the definition.
I can't tell whether this defines the answer.

'back from ragusa' is the wordplay.
'SUGAR' is hidden backwards within the letters.
However, I am uncertain how the hidden word is indicated.

'brought' is the link.

Can you help me to learn more?

(Other definitions for sugar that I've seen before include "Argus (anag.)" , "Term of affection" , "Sweetening agent" , "Sweeten" , "for such a daddy" .)

I've seen this clue in the Evening Standard.
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