Goddess among the begonias (4)
I believe the answer is:
hebe
'goddess' is the definition.
(Greek goddess)
'among the begonias' is the wordplay.
'among' says the answer is hidden in the clue.
'HEBE' is hidden in the letters of 'the begonias'.
(Other definitions for hebe that I've seen before include "Goddess of youth and flowering shrub" , "Greek goddess of youth, wife of Hercules" , "Zeus's daughter; shrub" , "Olympian cupbearer - evergreen garden shrub" , "Greek goddess of spring" .)