Wanderlust (5,4)
I believe the answer is:
itchy feet
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wanderlust</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that wanderlust can be written as itchy feet)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for itchy feet that I've seen before include "reason for leaving?" , "Restlessness, a desire to travel - or scratch?" , "Those with these have a strong impulse to travel" , "Strong desire to travel" , "They show a strong urge to travel" .)