Learned person (6)
(Other definitions for luminary that I've seen before include "One famous in his profession" , "Eminent person or light-giving body" , "Person of influence" , "Person who inspired others" , "Influential person" .)
'learned person' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for scholar that I've seen before include "Academic, schoolboy" , "university type?" , "Noted academic" , "Learned (or learning) one" , "Academic; pupil" .)
'learned person' is the definition.
(synonyms)
This is all the clue.
(Other definitions for pundit that I've seen before include "A person of great learning" , "Learned authority" , "A learned person of Hindu origin?" , "A learned type" , "A learned Hindu or expert generally" .)