Carpeted perhaps, made of strong stuff? (6)
I believe the answer is:
rugged
This clue is a double definition.
'carpeted perhaps' is the first definition.
'made of strong stuff?' is the second definition.
(Other definitions for rugged that I've seen before include "Sturdy, strong and enduring" , "Sturdy and rough of features" , "Rough or unpolished" , "fit for heavy duty" , "wearing a wig?" .)