Material that did not stand out? (5)
I believe the answer is:
satin
'material' is the definition.
(I know that satin is a type of material)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for satin that I've seen before include "Silky material" , "Glossy textile" , "Rich cloth" , "Lustrous fabric" , "Smooth and silky" .)