Of course, there is a way to do this. You can use the ActionChains API and you can move the mouse over an element, adjust by some offset, and then click at that location. Here's how you do it using WebDriver in Python:
element = find_element_by_selector(selector)
ed = ActionChains(browser)
Everybody might just quickly try to dismiss this question but, there are a number of ways to click at a specific location, rather than on any element. This technique would also be valuable for imagemaps as well.
Hope you find this useful. :)