I would like to create a Developer Edition Org from Full.
I haven't been able to find anything online for this, maybe I'm just bad at searching.
Is it possible? Is a specific license needed?
Salesforce Stack Exchange is a question and answer site for Salesforce administrators, implementation experts, developers and anybody in-between. It only takes a minute to sign up.Sign up to join this community
It is absolutely not possible to create a Developer Edition Org from any Sandbox. Developer Edition Orgs are standalone instances not related to or based upon anything except the Salesforce-managed org template.
If you're talking about sandbox cloning, and want to create a new Developer or Developer Pro Sandbox, you can't do that from a Full Sandbox. Per the docs, you can only clone a Sandbox to the same sandbox license type:
A cloned sandbox uses the same license type as its source org. For example, to clone a Full sandbox you must have a Full sandbox license available.