I paid Roger off for American Marmot of the Grassy Plains (7,3)

I believe the answer is:

prairie dog

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'american marmot of the grassy plains' is the definition.
I can't judge whether this defines the answer.

'i paid roger off' is the wordplay.
'off' indicates an anagram.
'i'+'paid'+'roger'='ipaidroger'
'ipaidroger' is an anagram of 'PRAIRIE-DOG'.

'for' is the link.

Can you help me to learn more?

(Other definitions for prairie dog that I've seen before include "Underground community member" , "North American burrowing mammal" , "Animal" , "Rodent" , "A ground squirrel" .)

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

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