More intelligent, a little nephew is erudite (5)

I believe the answer is:

wiser

'more intelligent' is the definition.

'a little nephew is erudite' is the wordplay.
'a little' says the answer is hidden in the clue.
'WISER' is hidden within 'nephew is erudite'.

(Other definitions for wiser that I've seen before include "More prudent" , "showing more understanding?" , "Having learned one's lesson?" , "more enlightened" , "more like Charles V" .)

I've seen this clue in The Times.

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