Difficult to get hold of a particular Bible for US university (7)
I believe the answer is:
harvard
'us university' is the definition.
(I've seen this before)
'difficult to get hold of a particular bible' is the wordplay.
'difficult' becomes 'hard' (associated in meaning).
'to get hold of' means one lot of letters goes inside another.
'particular bible' becomes 'rv' (abbreviation for Revised Version).
'a'+'rv'='arv'
'hard' enclosing 'arv' is 'HARVARD'.
'for' acts as a link.
(Other definitions for harvard that I've seen before include "Oldest university in the USA" , "US university, founded 1636" , "Ivy league university in Cambridge, Massachusetts" , "place of learning" , "US Ivy League university" .)