Bee secretion (5,5)
I believe the answer is:
royal jelly
'bee secretion' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for royal jelly that I've seen before include "Bees secretion" , "Honey bee secretion" , "Food for queen and larvae" , "Special food made by workers" , "Product of honeybee workers" .)