Food from heaven (5)
I believe the answer is:
manna
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">food from heaven</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 manna that I've seen before include "Heavenly nourishment" , "Food God gave to Moses" , "Old Testament food (from heaven?)" , "Divine nourishment" , "unexpected windfall" .)