German philosopher, no good — a baddie (4)

I believe the answer is:

heel

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'good a baddie' is the definition.
I can't judge whether this defines the answer.

'german philosopher no' is the wordplay.
'german' becomes 'g' (abbreviation).
'philosopher' becomes 'Hegel' (German philosopher Georg Wilhelm Friedrich Hegel).
'no' indicates named letters should be taken away.
'hegel' with 'g' taken out is 'HEEL'.

Can you help me to learn more?

(Other definitions for heel that I've seen before include "Reprehensible person" , "order to dog" , "scumbag" , "Instruction to a dog" , "afoot?" .)

I've seen this clue in The Times.

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