Possible Clues:

• Wrong (a girl!)
• What's wrong with a girl like this?
• Is that what's wrong with one of the end of 1 down?
• Not being married, not to be badly taken
• One not married after answer is wrong
• That's the sort of girl you wouldn't make a hit with; that's what's wrong
• Equivalent of 33-Down?
• Wacky
• What's wrong for her to be single?
• Imperfect