Epistle (6)
I believe the answer is:
letter
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">epistle</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for letter that I've seen before include "Character of the alphabet" , "Written character - landlord" , "Item sent - character" , "A written form of communication" , "Form of correspondence" .)