Mail worker (7)
I believe the answer is:
postman
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mail worker</span>' is the definition.<br/ ><span class="explanation-format__explanation">(someone who delivers mail)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for postman that I've seen before include "Male to deliver mail" , "Male mail carrier" , "one delivers" , "Letter deliverer" , "No stamp needed, stangely, for this job" .)