Felines hunt successfully in this range (8)

I believe the answer is:

catskill

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'this range' is the definition.
I know nothing about this answer so I can't tell whether this works.

'felines hunt successfully' is the wordplay.
'felines' becomes 'cats' (cat is a kind of feline).
'hunt successfully' becomes 'kill' (I am not sure about this - if you are sure you should believe this answer much more).
'cats'+'kill'='CATSKILL'

'in' acts as a link.

Can you help me to learn more?

(Another definition for catskill that I've seen is " Mountains".)

I've seen this clue in The Sun.

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