Template:Brl
Explanation
The template itself is, invisibly, above. It consists of:
<br style="clear:left" />
This is a line break, with the extra twist that it clears (comes below) anything — that it doesn't allow floating — at its left.
Use
As there seems little chance that this template will be changed, it is an excellent candidate for "Subst" (substitution rather than transclusion). Use it like this:
{{Subst:Brl}}
Saving it will then convert it, to:
<br style="clear:left" />