Great, a joke I fed to MC (8)

I believe the answer is:

majestic

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'great' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

'a joke i fed to mc' is the wordplay.
'joke' becomes 'jest' (synonyms).
'fed to' means one lot of letters goes inside another.
'a'+'jest'+'i'='ajesti'
'ajesti' inserted within 'mc' is 'MAJESTIC'.

Can you help me to learn more?

(Other definitions for majestic that I've seen before include "Regal - stately" , "Regal, imperial" , "Regal - grand" , "August" , "Of noble bearing, like a king" .)

I've seen this clue in The Telegraph.

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