Idea that is sweeping angry elite away (10)

I believe the answer is:

generality

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'idea that is sweeping' is the definition.
'generality' can be an answer for 'idea' (generality is a kind of idea). I'm unsure of the rest of the definition.

'angry elite away' is the wordplay.
'away' is an anagram indicator (letters move away from their original places).
'angry'+'elite'='angryelite'
'angryelite' with letters rearranged gives 'GENERALITY'.

Can you help me to learn more?

(Another definition for generality that I've seen is " Lack of detail".)

I've seen this clue in The Guardian.

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