Standard academic indulgence (6)
I believe the answer is:
pardon
'indulgence' is the definition.
(I've seen this before)
'standard academic' is the wordplay.
'standard' becomes 'par' (standard of play in golf).
'academic' becomes 'don' (type of academic - especially at Oxbridge).
'par'+'don'='PARDON'
(Other definitions for pardon that I've seen before include "Forgiveness - I beg yours" , "Forgive the polite interruption" , "Ask this to seek forgiveness" , "Forgive or excuse (an offence)" , "Grant forgiveness" .)