Macron's on about Georgia, sweetie (5)

I believe the answer is:

sugar

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'sweetie' is the definition.
(I've seen this in another clue)

'macron's on about georgia' is the wordplay.
'macron's on' becomes 'sur' (I am not sure about this - if you are sure you should believe this answer much more).
'about' means one lot of letters goes inside another.
'georgia' becomes 'GA' (abbreviation).
'sur' going around 'ga' is 'SUGAR'.

Can you help me to learn more?

(Other definitions for sugar that I've seen before include "Cane or beet product" , "Sweetening agent" , "Basic sweetener" , "e.g. Glucose" , "White crystalline carbohydrate" .)

I've seen this clue in The Daily Express.

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