Order Ronald to be king, one imagines (6)

I believe the answer is:

oberon

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

'king one imagines' is the definition.
I can't judge whether this defines the answer.

'order ronald to be' is the wordplay.
'order' becomes 'o' (abbreviation e.g. in British honours OM, OBE etc.).
'ronald' becomes 'ron' (I've seen this in other clues).
'to' is a charade indicator (letters next to each other) (I've seen this in other clues).
'ron' put after 'be' is 'beron'.
'o'+'beron'='OBERON'

Can you help me to learn more?

(Other definitions for oberon that I've seen before include "Titania's husband" , "Satellite" , "...[IN DREAM] with king" , "Shakespeare's fairy king" , "King of the fairies (AMND)" .)

I've seen this clue in the Evening Standard.

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