Comic book contributing to human gaiety (5)

I believe the answer is:

manga

'comic book' is the definition.
(type of Japanese comic book)

'contributing to human gaiety' is the wordplay.
'contributing to' says the answer is hidden in the clue (the answer contributes to part of the clue ).
'MANGA' can be found hidden inside 'human gaiety'.

(Other definitions for manga that I've seen before include "Japanese comic genre" , "Japanese cartoon genre" , "Jap. comic book" , "Entertainment in Tokyo" .)

I've seen this clue in The Times.

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