Postal worker (7)
I believe the answer is:
mailman
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">postal worker</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for mailman that I've seen before include "He delivers the post in the US" , "American man of letters" .)