Charity is gathered here, releasing lambs and bull (4,3)

I believe the answer is:

alms box

'charity is gathered here' is the definition.

'releasing lambs and bull' is the wordplay.
'releasing' indicates an anagram (letters released from their original order).
'and' means one lot of letters go next to another.
'bull' becomes 'ox'.
'lambs' with letters rearranged gives 'almsb'.
'almsb'+'ox'='ALMS BOX'

I've seen this clue in The Independent.

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