Prayer for good health and where to make it? (7,4)

I believe the answer is:

wishing well

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'health and where to make it?' is the definition.
I can't tell whether this defines the answer.

'prayer for good' is the wordplay.
'prayer for' becomes 'wishing' (I can't justify this - if you can you should believe this answer much more).
'good' becomes 'well' (synonyms).
'wishing'+'well'='WISHING-WELL'

Can you help me to learn more?

I've seen this clue in The Globe and Mail.

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