God of love in Greek mythology (4)
I believe the answer is:
eros
'god of love in greek mythology' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for eros that I've seen before include "Cupid, to the Greeks" , "Winged god of love" , "I'm in a circus in London" , "Famous statue in Piccadilly, London" , "Love-god's statue in Piccadilly" .)