This template should be used to mark an article or section as requiring cleanup. This is generally formatting, but it can also be used if the descriptions of the subject matter are incomplete or poor. If you add this template to an article or section, you should first add an explanation of what is wrong to the discussion page. This template links to the discussion page.
This template should not be used for articles or sections that have small formatting issues. Instead of adding this template, you should fix the formatting yourself. This template is for articles that have many formatting issues, usually systemic, such that repairing it yourself would take a lot longer than you are willing to invest.
It does have a parameter. If you want to use it in a section, use this:
|This section needs proper formatting or improved descriptions. Further details can be found on the [[Talk:Template:Cleanup|talk page]].|