Fluid collected by bees (6)
I believe the answer is:
nectar
'fluid collected by bees' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for nectar that I've seen before include "Heavenly brew" , "Suggary stuff in plants to attract insects" , "Sweet fluid collected by bees" , "sweet thing" , "queen's workers to get this" .)