Copy of standard drivel (6)
I believe the answer is:
parrot
'copy' is the definition.
(thesaurus)
'standard drivel' is the wordplay.
'standard' becomes 'par' (I've seen this before).
'drivel' becomes 'rot' (rot is a kind of drivel).
'par'+'rot'='PARROT'
'of' acts as a link.
(Other definitions for parrot that I've seen before include "Bright tropical bird" , "Sick as a -" , "The bird can mimic sounds" , "Mechanically repeat; bird" , "Imitate like tropical bird" .)