I have set up my type without any returns - as follows;
<$description default='Enter body content here'$>
When the client enters the content a return appears between the Name and the Content, like so;
Dear Client Name,
Sample content blah blah blah blah blah blah...
How do I avoid the return?
The description field automatically wraps all content entered in it in a paragraph tag, that's likely where your line break is coming from. Your best bet would either to be to use a title tag (which doesn't have the WYSIWYG editor), style the paragraph tag so that there is less space (which wouldn't be supported in all email clients, or adapt the design to take the tag into account.
Diana, you can't possibly mean that if one uses the description tag one has to live with the result starting one line break down and leaving a line break due to the inserted paragraph tags, do you? That seems nuts.