Anger about British book (5)
I believe the answer is:
bible
'book' is the definition.
(I know that book can be written as Bible)
'anger about british' is the wordplay.
'anger' becomes 'bile' (I've seen this in another clue).
'about' means one lot of letters goes inside another.
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'bile' going around 'b' is 'BIBLE'.
(Other definitions for bible that I've seen before include "Holy Writ" , "See 12" , "reliable work" , "Authoritative source" , "It contains scriptures" .)