Cupid's Greek counterpart (4)
I believe the answer is:
eros
'cupid's greek counterpart' 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 "In Greek myth, the god of love" , "Greek name of Cupid" , "divinity" , "God of love - example of 1 down" , "Greek equivalent to Roman Cupid" .)