Graceful English member introducing a collection of books (7)
I believe the answer is:
elegant
'graceful' is the definition.
(similar in meaning)
'english member introducing a collection of books' is the wordplay.
'english' becomes 'E' (abbreviation).
'member' becomes 'leg' (member can mean a limb).
'introducing' is a charade indicator (letters next to each other) (some letters go before others).
'collection of books' becomes 'NT' (New Testament).
'e'+'leg'+'a'+'nt'='ELEGANT'
(Other definitions for elegant that I've seen before include "Stylish in appearance, a gentle kind" , "Attractive and graceful or stylish" , "A gentle sort of stylish appearance" , "Teen gal (anag.)" , "Chic; smart" .)