Traveler's aid (5)
I believe the answer is:
atlas
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">traveler's aid</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 atlas that I've seen before include "Sort of book" , "He had the world on his shoulders" , "Cartographer's work" , "N African mountains - seemaps book" , "African mountain range" .)