Book, say, with Dickens character causing envy (8)
I believe the answer is:
begrudge
'envy' is the definition.
('begrudge' can be a synonym of 'envy')
'book say with dickens character' is the wordplay.
'book' becomes 'b'.
'say' becomes 'eg'.
'with' says to put letters next to each other.
'dickens character' becomes 'rudge' (I've seen this before).
'b'+'eg'+'rudge'='BEGRUDGE'
'causing' is the link.
(Other definitions for begrudge that I've seen before include "Feel resentment and envy" , "Give resentfully" , "Envy another's possessions or good fortune" , "Envy, resent having to give" , "Resent other's good fortune or possession" .)