Far-off beasts found in a Paris slum, upsetting (10)

I believe the answer is:

marsupials

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'far-off beasts' is the definition.
'marsupials' can be an answer for 'beasts' (marsupial is a kind of beast). I'm not sure about the 'far-off' bit.

'a paris slum upsetting' is the wordplay.
'upsetting' is an anagram indicator.
'a'+'paris'+'slum'='aparisslum'
'aparisslum' anagrammed gives 'MARSUPIALS'.

'found in' is the link.

Can you help me to learn more?

(Another definition for marsupials that I've seen is " Bandicoot, wombat, kangaroo etc".)

I've seen this clue in The Everyman puzzle in The Observer.

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