Ban a certain style of beard (5)

I believe the answer is:

debar

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'ban a certain style' is the definition.
'debar' can be an answer for 'ban' (I've seen this before). I am unsure of the 'a certain style' bit.

'of beard' is the wordplay.
'of' is an anagram indicator (the answer comes from or 'of' the letters).
'beard' with letters rearranged gives 'DEBAR'.

Can you help me to learn more?

(Other definitions for debar that I've seen before include "Exclude (from doing something)" , "Refuse to admit" , "Exclude, prohibit" , "Stop" , "Shut out, preclude" .)

I've seen this clue in the Evening Standard.

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