Aphrodite's son (4)
I believe the answer is:
eros
'aphrodite's son' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for eros that I've seen before include "Piccadilly 14 ac statue" , "Famous statue in Piccadilly, London" , "In Greek myth, the god of love" , "Roman god of love, Cupid" , "Greek god of love - see statue in Piccadilly" .)