Delicious beverage Cretan brewed (6)
I believe the answer is:
nectar
'delicious beverage' is the definition.
(drink of the gods in classical mythology)
'cretan brewed' is the wordplay.
'brewed' indicates an anagram.
'cretan' with letters rearranged gives 'NECTAR'.
(Other definitions for nectar that I've seen before include "Fluid secreted by flowers" , "Sweet floral secretion" , "Sweet fluid produced by flowers" , "Suggary stuff in plants to attract insects" , "Recant (anag.)" .)