Prudently concealed being discourteous (4)

I believe the answer is:

rude

'discourteous' is the definition.
(I've seen this before)

'prudently concealed' is the wordplay.
'concealed' says the answer is hidden in the clue.
'RUDE' is hidden within 'prudently'.

'being' acts as a link.

(Other definitions for rude that I've seen before include "Impolite; unpolished" , "discourtesy" , "Base" , "Impolite, without consideration" , "'Bad-mannered, discourteous (4)'" .)

I've seen this clue in The Irish News.

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