Crossword Genius

Information on a not very high hill (7)

Ross

I believe the answer is:

lowdown

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'information' is the definition.
(I've seen this before)

'on a not very high hill' is the wordplay.
'on' is a charade indicator (letters next to each other).
'a not very high' becomes 'low' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'hill' becomes 'down' (I've seen this in other clues).
'low' put next to 'down' is 'LOWDOWN'.

Can you help me to learn more?

(Other definitions for lowdown that I've seen before include "Inside information - mean" , "news" , "Dope" , "confidential information" , "base" .)

I've seen this clue in the Evening Standard.
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