As an author who is writing a story for paid publication, you will need to develop the skills to research your plots. Good luck.
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You could have the teacher have a relationship outside of school with the girl and/or the girl's parents. Then you could have the parents side with the teacher for more drama. The more difficult task is to come up with a plot where there are damages. In many cases, there is a lie, publication (i.e. at least one third party heard the lie), but there is no case because the plaintiff cannot show any damages. One google search that may be worth pursuing is "first amendment and teacher rights." Best of luck!
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