University serious about a bible (7)
I believe the answer is:
harvard
'university' is the definition.
(Harvard is an example)
'serious about a bible' is the wordplay.
'serious' becomes 'hard' ('hard' can be similar in meaning to 'serious'**).
'about' is an insertion indicator.
'bible' becomes 'rv' (Revised Version, revision of King James Bible).
'a'+'rv'='arv'
'hard' enclosing 'arv' is 'HARVARD'.
(Other definitions for harvard that I've seen before include "Ivy league university in Cambridge, Massachusetts" , "Oldest US university" , "Member of the 11 at Cambridge, Massachusetts" , "American university" , "US Ivy League university" .)