Rough material getting criticised and substituted (8)
I believe the answer is:
replaced
'substituted' is the definition.
('replace' can be a synonym of 'substitute')
'rough material getting criticised' is the wordplay.
'rough material' becomes 'rep' (rep is a type of fabric).
'getting' means one lot of letters go next to another.
'criticised' becomes 'laced' (to lace into someone is to criticise them).
'rep'+'laced'='REPLACED'
'and' acts as a link.
(Other definitions for replaced that I've seen before include "Led caper (anag.)" , "Substituted, supplanted" , "Substituted, exchanged" , "Put back in position" .)