This summary is not the rule. The rule text controls.
This rule gives district court clerks the power to sign certain judgments on their own, without a judge doing it. Clerks can sign default judgments, which happen when someone sues another person and that person never shows up to fight the case. Clerks can also sign judgments by confession, which happen when someone being sued agrees to the judgment against them.
This power only applies to smaller cases, the kind that a justice of the peace could also handle. If a case is bigger or falls outside that shared authority, the clerk cannot sign the judgment. A judge would need to handle it instead.
For people involved in a lawsuit, this means the process can move faster in smaller cases. If you don't respond to a lawsuit and the other side asks for a default judgment, a clerk (not just a judge) may be able to finalize that judgment against you. The same goes if you agree to a judgment being entered against you. This rule simply lets clerks help handle routine, lower-level cases without waiting on a judge's signature every time.