Account in the New Testament (9)
I believe the answer is:
statement
'account' is the definition.
(I've seen this before)
'new testament' is the wordplay.
'new' indicates anagramming the letters.
'testament' is an anagram of 'STATEMENT'.
'in the' acts as a link.
(Other definitions for statement that I've seen before include "Testament about something said" , "relation" , "Formal account given to police" , "What bank provides" , "may be taken by police" .)