If you are using jsf >= 2.0:
<ice:commandLink actionListener="#{myBean.reset(myList)}">
If you just want to empty your List you can do:
<ice:commandLink>
<f:setPropertyActionListener target="#{myBean.myList}" value="#{null}" />
</ice:commandLink>
And in your manageBean you can do something like this:
getMyList(){
return myList == null ? new ArrayList() ? myList;
}
If not you can check some alternatives here.