Crossword Genius

Celebration in Acrosses carries today’s (4)

Ross

I believe the answer is:

nina

I'm a little stuck... Click here to teach me more about this clue!

'today's' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

'celebration in acrosses carries' is the wordplay.
'carries' indicates the answer is hidden within the clue.
'NINA' can be found hidden inside 'celebration in acrosses'.

Can you help me to learn more?

(Other definitions for nina that I've seen before include "- - Simone, 1933-2003, singer" , "- Simone, US singer" , "Al Hirschfeld's 'hidden' daughter" , "Girl" , "hidden crossword message" .)

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