Pentridge's stern criminal limits snobbery (7)
I believe the answer is:
elitism
'snobbery' is the definition.
(I've seen this in another clue)
'pentridge's stern criminal limits' is the wordplay.
I cannot really see how this works, but
an anagram of 'limits' is 'litism' which is located in the answer.
A single letter 'e' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for elitism that I've seen before include "goverment by chosen group" , "Practice of favouring the best people" , "favouring the top people" , "Advocacy of select group" , "Superior attitude of those in power" .)