Class of Orangeman disregarding moan (5)

I believe the answer is:

range

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'class' is the definition.
(thesaurus)

'orangeman disregarding moan' is the wordplay.
'RANGE' is hidden in amongst the letters.
But, I'm unsure how this is indicated.

'of' acts as a link.

Can you help me to learn more?

(Other definitions for range that I've seen before include "Walk for miles" , "Limit of effectiveness" , "Array" , "Extent; line of mountains" , "Area of variation" .)

I've seen this clue in the Irish Times.

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