Dispatch boat (5)
I believe the answer is:
aviso
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dispatch boat</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for aviso that I've seen before include "Information" , "vessel carrying a message" .)