Contents of manifest I validated for holiday (8)

I believe the answer is:

festival

'holiday' is the definition.
(thesaurus)

'contents of manifest i validated' is the wordplay.
'contents of' indicates a hidden word.
'FESTIVAL' is hidden in the letters of 'manifest i validated'.

'for' is the link.

(Other definitions for festival that I've seen before include "Religious feast" , "Celebratory period" , "Holy day" , "Live fast (anag.)" , "Celebration, religious or artistic" .)

I've seen this clue in The Times.

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