Motive, aim (7)
I believe the answer is:
purpose
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">motive</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(purpose is a kind of motive)</span><br/ ><br/ >'<span class="explanation-format__original">aim</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for purpose that I've seen before include "Aim, intention, design" , "Will - point" , "Reason for existence" , "Goal, aim or intent" , "Motivation or intention" .)