Turns up, the foreign B&B welcomes initial inclusion in good books (5)
I believe the answer is:
bible
'good books' is the definition.
'bible' can be an answer for 'books' (I have seen 'Holy books ' mean 'bible' so perhaps 'books' could also mean 'bible'). I am not certain of the 'good' bit.
'turns up the foreign bb welcomes initial inclusion' is the wordplay.
'turns up' shows that the letters should be reversed in order.
'the foreign' becomes 'el'.
'welcomes' indicates putting letters inside (in sense of 'invites in').
'initial' indicates taking the first letters.
The initial letter of 'inclusion' is 'i'.
'el'+'bb'='elbb'
'elbb' placed around 'i' is 'elbib'.
'elbib' reversed gives 'BIBLE'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for bible that I've seen before include "The Christian or Jewish scriptures" , "Authoritative source" , "Holy Scripture" , "Holy books" , "Christian holy book" .)