How to display just the title in Announcement on the Home page. Can I hide the body so it can be seen only if you click on the title in SharePoint 2010
Easy. You want to edit the Announcements web part and change the view. You could modify the existing view to remove the columns you don't want, or open the Announcements list and create a new view that only has the Name (linked to document) then use that for your web part.