Outline clue for aide, cryptically? (5,4)

I believe the answer is:

rough idea

'outline' is the definition.

'clue for aide cryptically?' is the wordplay.
'clue for' becomes 'rough' (I am not sure about this - if you are sure you should believe this answer much more).
'cryptically?' is an anagram indicator (I've seen 'cryptically' mean this).
'aide' with letters rearranged gives 'idea'.
'rough'+'idea'='ROUGH IDEA'

I've seen this clue in The Independent.

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