He's capable of starting majestically (5)

I believe the answer is:

james

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'he's' is the definition.

I don't understand the remainder of the clue.

(Other definitions for james that I've seen before include "Boy's name" , "Former king" , "Henry the writer" , "The first king of England and Scotland" , "Apostle" .)

I've seen this clue in the Evening Standard.

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