Trot out standard rubbish (6)
I believe the answer is:
parrot
'trot out' is the definition.
Although both the answer and definition are verbs in their base form, I don't see how one could define the other.
'standard rubbish' is the wordplay.
'standard' becomes 'par' (standard of play in golf).
'rubbish' becomes 'rot' (both can mean nonsense).
'par'+'rot'='PARROT'
Can you help me to learn more?
(Other definitions for parrot that I've seen before include "Recite" , "Psittacine bird" , "Unintelligent imitator" , "Brightly coloured tropical bird" , "One repeating" .)