Those busy with trivia organised protest around the outskirts of Reigate (9)

I believe the answer is:

potterers

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'those busy with trivia' is the definition.
I can't tell whether this defines the answer.

'organised protest around the outskirts of reigate' is the wordplay.
'organised' indicates an anagram.
'around' is an insertion indicator.
'the outskirts of' says to hollow out the word (remove centre letters) (only letters on the outskirts).
'reigate' with its centre taken out is 're'.
'protest' anagrammed gives 'potters'.
'potters' going around 're' is 'POTTERERS'.

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I've seen this clue in The Independent.

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