Drink of the gods — Cretan rum (6)
I believe the answer is:
nectar
'drink of the gods' is the definition.
(drink of the gods in Greek myth)
'cretan rum' is the wordplay.
'rum' indicates an anagram (rum can mean strange or unusual).
'cretan' with letters rearranged gives 'NECTAR'.
(Other definitions for nectar that I've seen before include "That's sweet" , "Sugary secretion" , "Flower secretion" , "Sweet liquid secretion to attract pollinators" , "sweet thing" .)