Name one idiot or another (6)

I believe the answer is:

nitwit

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'or another' is the definition.
I can't tell whether this defines the answer.

'name one idiot' is the wordplay.
'name' becomes 'n' (common abbreviation e.g. on forms).
'one' becomes 'i' (Roman numeral).
'idiot' becomes 'twit' (both can mean a stupid person).
'n'+'i'+'twit'='NITWIT'

Can you help me to learn more?

(Other definitions for nitwit that I've seen before include "dope" , "Turkey" , "Foolish person like funny louse?" , "'Foolish, silly person (6)'" , "Noodle, numskull" .)

I've seen this clue in The Times.

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