Prepare to pray aloud to immature singer-songwriter (4,5)

I believe the answer is:

neil young

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

'singer-songwriter' is the definition.
(Neil Young is a singer-songwriter)

'prepare to pray aloud to immature' is the wordplay.
I cannot really see how this works, but
'immature' could be 'young' (associated in meaning) and 'young' is present in the answer.
The remaining letters 'neil' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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