Please update your forum profile with a recognisable username instead of "729396".
Always include the information described in these guidelines when posting a question: how to get answers from forum
Apex Text or Number Item
In APEX 18 or 19 is there a supported way to make an entry item with a "clearable" icon?
It would terrific to be able clear a field with the "x" icon. I believe I saw custom code to do this but is there declarative way to do this?
Depends where you draw the line between "declarative" and "custom".
There is an existing item plug-in (but it looks like it's in need of updating), however it's simple enough to create buttons with some HTML snippets in an item's Post Text property, and add the required behaviours declaratively using Click dynamic actions. For an example see step 12 here: Dan McGhan's Oracle APEX Blog: Tutorial: Creating a Component Similar to Super LOV Using Native Components