Supplying workers can provide blessing (6,2,2,5)

I believe the answer is:

laying on of hands

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

'blessing' is the definition.
(thesaurus)

'supplying workers' is the wordplay.
I cannot really see how this works, but
'workers' could be 'hands' (hand is a kind of worker) and 'hands' is found in the answer.
This may be the basis of the clue (or it may be nonsense).

'can provide' is the link.

Can you help me to learn more?

(Another definition for laying on of hands that I've seen is " blessing?".)

I've seen this clue in The Irish Times.

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