Providential, fortunate (6-4)
I believe the answer is:
heaven-sent
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">providential</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">fortunate</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for heaven-sent that I've seen before include "Very timely" , "Providential" , "Coming at a very opportune time" , "Occurring just at the right time" .)