Pudding to have quietly, at leisure (5)

I believe the answer is:

pease

'pudding' is the definition.
(pease pudding is a kind of pudding)

'quietly at leisure' is the wordplay.
'quietly' becomes 'p' (musical symbol).
'at' is a charade indicator (letters next to each other).
'leisure' becomes 'ease' (I've seen this before).
'p'+'ease'='PEASE'

'to have' is the link.

I've seen this clue in the Evening Standard.

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