Italian tenor, large one closing live performance (5)

I believe the answer is:

gigli

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This could be a double definition.

'italian tenor' is the first definition.
(I've seen this before)

'large one closing live performance' is the second definition.
The definition suggests a singular noun which matches the answer.

Can you help me to learn more?

(Other definitions for gigli that I've seen before include "Beniamino -, Italian tenor" , "Famous tenor" , "Opera-singer'" , "Singer" .)

I've seen this clue in The Times.

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