Cure-all (7)
I believe the answer is:
panacea
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cure-all</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for panacea that I've seen before include "comprehensive fix" , "A cure-all for diseases or troubles" , "Cure for all things" , "Remedy for wide variety of ills, a cure-all" , "that'll solve everything" .)