Monk and a couple of bishops with holy books (5)
I believe the answer is:
abbot
'monk' is the definition.
(an abbot is a senior monk)
'a couple of bishops with holy books' is the wordplay.
'couple of' indicates the doubling of some letters.
'bishops' becomes 'b' (this could be a standard abbreviation I've not previously seen).
'with' says to put letters next to each other.
'holy books' becomes 'OT' (Old Testament).
'b' doubled is 'bb'.
'a'+'bb'+'ot'='ABBOT'
'and' is the link.
Can you help me to learn more?
(Other definitions for abbot that I've seen before include "Head of religious house" , "Father" , "Supervisor of brothers" , "Monks' superior" , "Convent leader, male" .)