Vague phone plan with tepid fee turning into raw deal (5,3,2,3,9)

I believe the answer is:

rough end of the pineapple

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'vague phone plan with tepid fee turning into raw deal' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'vague phone plan with tepid fee turning into' is the wordplay.
'vague' becomes 'rough' (I can't explain this - if you can you should believe this answer much more).
'with' says to put letters next to each other.
'turning into' is an anagram indicator.
'phone'+'plan'+'tepid'+'fee'='phoneplantepidfee'
'phoneplantepidfee' with letters rearranged gives 'endofthepineapple'.
'rough'+'endofthepineapple'='ROUGH END OF THE PINEAPPLE'

Can you help me to learn more?

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

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