allegorist
annotator
book reviewer
captious critic
carper
caviler
censor
censurer
cicerone
clarifier
cognoscente
commentator
commenter
connoisseur
critic
criticaster
criticizer
critickin
criticule
cryptanalyst
cryptographer
cryptologist
decoder
definer
demonstrator
demythologizer
diaskeuast
dragoman
editor
editorial writer
editorialist
emendator
emender
euhemerist
exegesist
exegete
exegetist
explainer
explicator
exponent
expositor
expounder
faultfinder
glossarist
glossographer
go-between
guide
hermeneut
interpreter
leader writer
bookman
scholar
scholarly person
student
declaimer
face-painting
glossary
hagiology
lazzarone
librettist
newspaperman
popularizer
turnabout