Socially unconventional types strike skin back (8)

I believe the answer is:

beatniks

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'socially unconventional types' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps you can see an association between them that I can't see?

'strike skin back' is the wordplay.
'strike' becomes 'beat' (I've seen this before).
'back' is a reversal indicator.
'skin' back-to-front is 'niks'.
'beat'+'niks'='BEATNIKS'

Can you help me to learn more?

(Other definitions for beatniks that I've seen before include "Former drop-outs" , "Nonconformist youths in the '50s and '60s" , "Hippies," , "Sink a bet about the old dropouts" , "Unconventional youngsters" .)

I've seen this clue in the Sydney Morning Herald.

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