Whenever you want (2,4)
I believe the answer is:
at will
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">whenever you want</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for at will that I've seen before include "Whenever one wishes" , "when one wants" , "According to one's own inclination" , "Whenever one pleases, own choice" , "Fire .. .... - whenever you're ready" .)