Wolf — more experienced packs in country (9)

I believe the answer is:

womaniser

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'wolf' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

(Other definitions for womaniser that I've seen before include "Philanderer" , "Lady-killer" , "Don Juan" , "Ladies' man" , "Lothario" .)

I've seen this clue in The Times.

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