Cause an egghead wild anger (6)

I believe the answer is:

enrage

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

'cause' is the definition.
Although both the answer and definition are verbs in their base form, I cannot see how one could define the other.

'an egghead wild anger' is the wordplay.
'an egghead' becomes 'e' (head letter of 'egg').
'wild' indicates anagramming the letters.
'anger' is an anagram of 'nrage'.
'e'+'nrage'='ENRAGE'

Can you help me to learn more?

(Other definitions for enrage that I've seen before include "Revolutionary group in Paris" , "Drive to anger" , "Greatly annoy" , "Greatly anger" , "Genera (anag.)" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.