Panacea (4-3)
I believe the answer is:
cure-all
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">panacea</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 cure-all that I've seen before include "Universal panacea" , "Panacea, nostrum" , "Universal remedy" .)