Depression of journalist turning up with books (4)
I believe the answer is:
dent
'depression' is the definition.
(synonyms)
'journalist turning up with books' is the wordplay.
'journalist' becomes 'ed' (short for editor).
'turning up' says the letters should be written in reverse.
'with' means one lot of letters go next to another.
'books' becomes 'NT' (abbreviation for New Testament).
'ed' back-to-front is 'de'.
'de'+'nt'='DENT'
'of' acts as a link.
(Other definitions for dent that I've seen before include "TV lexicographer?" , "A cavity" , "Impress" , "Tend to make small depression" , "Hollow from impact" .)