Cast are able to add more information (9)

I believe the answer is:

elaborate

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'add more information' is the definition.
I can't judge whether this definition defines the answer.

'cast are able to' is the wordplay.
'cast' indicates anagramming the letters (letters are dispersed or cast around).
'are'+'able'+'to'='areableto'
'areableto' anagrammed gives 'ELABORATE'.

Can you help me to learn more?

(Other definitions for elaborate that I've seen before include "Complicated or fancy" , "Detailed, complicated" , "Complicate" , "Highly detailed" , "Polish" .)

I've seen this clue in The Telegraph.

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