The most common and most likely answer to this crossword clue is the 6 letter word SABLES
I've seen this crossword clue in The Daily Telegraph
S
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More clues leading to the result SABLES
Buddy explains!

The straight part
We know that "Furs" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case furs = sables.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SABLES mean?
SABLES noun- A small carnivorous mammal of the Old World that resembles a weasel, Martes zibellina, from cold regions in Eurasia and the North Pacific islands, valued for its dark brown fur (Wikipedia).
- The marten, especially Martes americana (syn. Mustela americana).
- The fur or pelt of the sable or other species of martens; a coat made from this fur.
- An artist's brush made from the fur of the sable (Wikipedia).
- A black colour on a coat of arms (Wikipedia).
- A dark brown colour, resembling the fur of some sables.
- (in the plural, sables) Black garments, especially worn in mourning.
- Black garments worn in mourning.