John 1:3 All things were created by him, and apart from him not one thing was created that has been created
I would rather translate:
All things came to be through him, and apart from him not one thing came to be. / That which came to be in him was life... [another sentence according to the oldest (Gnostic) attestations.]
but the Word is clearly stated as a creation.
I don't think so.
Gnostic thought would rather suggest emanation from the highest divine level (Ogdoades or Plèrôma) than creation. And the more orthodox concept of "begetting" is not very far from it actually. Anyway the origin of the logos is not discussed in the Johannine Prologue.