Silky fabric with thick pile (6)
I believe the answer is:
velvet
'silky fabric with thick pile' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for velvet that I've seen before include "Silky, densely-piled fabric" , "Fabric with thick soft pile" , "You may find an iron hand in a ?? glove (6)" , "Silky densely piled fabric" , "A glove made of this might cover an iron hand" .)