Buffalo maybe files down range (9)

I believe the answer is:

snowfield

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'buffalo' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.

'files down range' is the wordplay.
'range' is an anagram indicator (range can mean put in order).
'files'+'down'='filesdown'
'filesdown' with letters rearranged gives 'SNOWFIELD'.

'maybe' acts as a link.

Can you help me to learn more?

(Another definition for snowfield that I've seen is " white blanket".)

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

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