Crossword Genius

Soft silky yarn (6)

Ross

I think it could be either:

angora

mohair

(Other definitions for angora that I've seen before include "Breed of goat, cat or rabbit" , "Fabric from animal hair" , "Mohair wool" , "Cloth from the soft hair of a goat" , "Breed of rabbit or cat, the former name for the Turkish capital" .)

I've seen this clue in The Independent.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.