Cleopatra's lover (6)
I believe the answer is:
antony
'cleopatra's lover' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for antony that I've seen before include "Shakespeare play ''...... and Cleopatra''" , "Roman" , "Mark perhaps" , "Lover of Cleopatra (Shak.)" , "Play about passion and politics" .)