Actual bottom line: government property (4,6)

I believe the answer is:

real estate

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'property' is the definition.
(I know that real estate is a type of property)

'actual bottom line government' is the wordplay.
'actual' becomes 'real' (synonyms).
'bottom line government' becomes 'estate' (I can't justify this - if you can you should give a lot more credence to this answer).
'real'+'estate'='REAL ESTATE'

Can you help me to learn more?

(Other definitions for real estate that I've seen before include "US-style spread?" , "Landed property" , "properties" , "land in New England" , "Land in America" .)

I've seen this clue in the Sydney Morning Herald.

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