Goth prayed desperately for source of support (7,3)

I believe the answer is:

therapy dog

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'source of support' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'goth prayed desperately' is the wordplay.
'desperately' indicates an anagram.
'goth'+'prayed'='gothprayed'
'gothprayed' with letters rearranged gives 'THERAPY DOG'.

'for' acts as a link.

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I've seen this clue in The Everyman puzzle in The Observer.

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