Possible Clues:

• One has a second mate
• Mr. with more than one Mrs.
• Marital cheat
• Person who marries while still married to another
• Man with two wives
• Epic film about a law-breaker
• One who marries while legally married to someone else
• Thus one might have the second mate heavily befogged
• Great lover has no alternative, as member of two unions
• He's largely befogged, but able to mate in two