I mend ripped material (5)
I believe the answer is:
denim
'material' is the definition.
(type of fabric)
'i mend ripped' is the wordplay.
'ripped' indicates an anagram.
'i'+'mend'='imend'
'imend' with letters rearranged gives 'DENIM'.
(Other definitions for denim that I've seen before include "Mined badly for a hard-wearing fabric" , "Coloured cotton twill" , "Hard-wearing cloth" , "Tough cotton fabric" , "Thick cotton cloth" .)