Fellow introducing French art books (5)
I believe the answer is:
tomes
'books' is the definition.
(tome is a kind of book)
'fellow introducing french art' is the wordplay.
'fellow' becomes 'tom' (man's name).
'introducing' is a charade indicator (letters next to each other) (some letters go before others).
'french art' becomes 'es' ('is' in French - 'art' can mean 'is' eg 'thou art').
'tom'+'es'='TOMES'
(Other definitions for tomes that I've seen before include "Weighty books" , "Big books" , "Large scholarly books" , "works" .)