Clown, one wanting daughter highly protected (8)

I believe the answer is:

cocooned

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'highly protected' is the definition.
Although both the answer and definition are past participle verbs, I don't understand how they can define each other.

'clown one wanting daughter' is the wordplay.
'clown' becomes 'coco' (Nicolai Poliakoff aka Coco the Clown).
'wanting' says to put letters next to each other.
'daughter' becomes 'd' (genealogical abbreviation).
'coco'+'one'+'d'='COCOONED'

Can you help me to learn more?

(Another definition for cocooned that I've seen is " Wrapped protectively".)

I've seen this clue in The Times.

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