Get involved with priest's charity giving fruit trees (4,5)

I believe the answer is:

date palms

'fruit trees' is the definition.

'get involved with priest's charity' is the wordplay.
'get involved with' becomes 'date'.
'priest' becomes 'p' (ecclesiastical abbreviation).
'charity' becomes 'alms' (alms is a kind of charity).
'date'+'p'+'alms'='DATE PALMS'

'giving' acts as a link.

I've seen this clue in The Guardian.

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