Nothing alongside feature is material (5)
I believe the answer is:
chino
'is material' is the definition.
(I've seen this before)
'nothing alongside feature' is the wordplay.
'nothing' becomes 'o' (looks like zero - 0).
'alongside' means one lot of letters go next to another.
'feature' becomes 'chin' (chin is a kind of feature).
'o' put after 'chin' is 'CHINO'.
(Other definitions for chino that I've seen before include "Cotton textile material" , "strong cloth" , "Durable cotton fabric" , "Coarse cotton khaki-coloured fabric" , "Twilled cotton cloth" .)