One wearing costume laid out for an Italian nationalist (9)

I believe the answer is:

garibaldi

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'italian nationalist' is the definition.
The definition suggests a singular noun which matches the answer.

'one wearing costume laid out for an' is the wordplay.
'one wearing' is an insertion indicator.
'costume' becomes 'garb' (I've seen this in another clue).
'out' indicates an anagram (out can mean wrong or inaccurate).
'for' says to put letters next to each other.
'an' becomes 'i' (Roman numeral for one).
'laid' with letters rearranged gives 'aldi'.
'garb'+'aldi'='garbaldi'
'garbaldi' going around 'i' is 'GARIBALDI'.

Can you help me to learn more?

(Other definitions for garibaldi that I've seen before include "Italian nationalist; biscuit" , "Famous Italian" , "Revolutionary leader" , "Lady's blouse" , "Blouse; biscuit; Italian patriot" .)

I've seen this clue in The Hindu.

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