Little rabble in party (4,6)

I believe the answer is:

baby shower

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

'party' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'little rabble' is the wordplay.
'little' becomes 'baby'.
'rabble' becomes 'shower' (I've seen this before).
'baby'+'shower'='BABY SHOWER'

'in' is the link.

Can you help me to learn more?

I've seen this clue in The Guardian.

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