Some high-points, perhaps, in awful dirges (6)

I believe the answer is:

ridges

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'some high-points perhaps' is the definition.
I can't judge whether this definition defines the answer.

'awful dirges' is the wordplay.
'awful' indicates anagramming the letters.
'dirges' anagrammed gives 'RIDGES'.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for ridges that I've seen before include "Wrinkles" , "Long narrow crests" , "Long, narrow elevations" , "Long raised strips" , "Strips either side of a ploughed furrow" .)

I've seen this clue in The Irish Times.

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