Blindly repeat standard nonsense (6)
I believe the answer is:
parrot
'blindly repeat' is the definition.
'parrot' can be an answer for 'repeat' (parroting is a kind of repeating). I'm unsure of the 'blindly' bit.
'standard nonsense' is the wordplay.
'standard' becomes 'par' (standard of play in golf).
'nonsense' becomes 'rot' (rot can mean nonsense or rubbish).
'par'+'rot'='PARROT'
Can you help me to learn more?
(Other definitions for parrot that I've seen before include "Ape" , "18's [BIRD]" , "Mimic speech like colourful bird" , "Copycat who does not understand words or acts imitated" , "Chant" .)