Fifth book of the New Testament (4)
I believe the answer is:
acts
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fifth book of the new testament</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for acts that I've seen before include "Done deeds" , "5th NT book" , "Is effective" , "Takes steps" , "Cast (anag) - performs" .)