Nerd soon crept out to find reporter (13)
I believe the answer is:
correspondent
'reporter' is the definition.
(I've seen this before)
'nerd soon crept out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'nerd'+'soon'+'crept'='nerdsooncrept'
'nerdsooncrept' with letters rearranged gives 'CORRESPONDENT'.
'to find' acts as a link.
(Other definitions for correspondent that I've seen before include "Person sending letters or written reports - agreeing" , "Newspaper writer" , "Overseas journalist" , "Journalist; letter writer" , "Pen-friend" .)