Goddess entertained by The Beatles (4)
I believe the answer is:
hebe
'goddess' is the definition.
(Greek goddess)
'entertained by the beatles' is the wordplay.
'entertained by' says the answer is hidden in the clue (the clue hosts or entertains the answer).
'HEBE' can be found hidden inside 'the beatles'.
(Other definitions for hebe that I've seen before include "Zeus's daughter; shrub" , "Cup-bearer of the gods and NZ plant" , "Youth personified" , "Who dished out divine drinks" , "Greek goddess of youth, wife of Hercules" .)