It is historically very well known and documented how he stole the ideas for the Apple and the Macintosh from Xerox PARC and others.
Even if he did have some good ideas, I have about 10 great ideas every day... that doesn't make me anything. Anyone is able to have "visionary ideas", notoriously, ideas are a dime a dozen.
Musk's ideas on the other hand are pathetically flawed. The boring company? Give me a bloody break. Colonising Mars...? AHAHAHAHA stop it, I am dying here...
If by Entrepreneur you mean a professional bullshitter and sociopathic serial manipulator, then yes. Musk definitely is.