Crossword Genius

Energy fuelling crazed Orlando genius (8)

Ross

I believe the answer is:

leonardo

I'm a little stuck... Click here to teach me more about this clue!

'genius' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'energy fuelling crazed orlando' is the wordplay.
I cannot quite understand how this works, but
'energy' could be 'e' (physics symbol as in E=mc2) and 'e' is found within the answer.
an anagram of 'orlando' is 'lonardo' which is within the left over letters.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for leonardo that I've seen before include "Da Vinci and DiCaprio" , ". . . . . . . . da Vinci (Renaissance genius)" , "- Da Vinci, Italian painter, engineer, sculptor" , "Painter of three ac" , "Da Vinci's name" .)

I've seen this clue in The Telegraph.
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