Reconstructing a city often fuels a rich community emerging (8,7)

I believe the answer is:

affluent society

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

'a rich community emerging' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'reconstructing a city often fuels' is the wordplay.
'reconstructing' is an anagram indicator (I've seen this in other clues).
'a'+'city'+'often'+'fuels'='acityoftenfuels'
'acityoftenfuels' with letters rearranged gives 'AFFLUENT SOCIETY'.

Can you help me to learn more?

I've seen this clue in The Irish Times.

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