Biblical food (5)
I believe the answer is:
manna
'biblical food' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for manna that I've seen before include "Delicious food" , "Sweet gum; an unexpected benefit" , "Miraculous substance from heaven" , "miraculously sustaining food" , "Godsend" .)