Pockets girl filled with drink (8)

I believe the answer is:

marsupia

'pockets' is the definition.
(marsupium is a kind of pocket)

'girl filled with drink' is the wordplay.
'girl' becomes 'maria' (**).
'filled with' indicates putting letters inside.
'drink' becomes 'sup' (I've seen this before).
'maria' placed around 'sup' is 'MARSUPIA'.

I've seen this clue in The Times.

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