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Fails to excite bookish types getting on with community that's prehistoric perhaps (6,3,4)

Ross

I believe the answer is:

leaves one cold

I'm a little stuck... Click here to teach me more about this clue!

'fails to excite bookish types' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'on with community that's prehistoric perhaps' is the wordplay.
I cannot really understand how this works, but
'on' is found in the answer.
'community' could be 'ec' (abbreviation for European Community) and 'ec' is found within the answer.
'prehistoric' could be 'old' (I've seen this in another clue) and 'old' is present in the answer.
The remaining letters 'leaves' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

'getting' acts as a link.

Can you help me to learn more?

(Another definition for leaves one cold that I've seen is " Fails to interest or excite".)

I've seen this clue in The Irish Times.
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