Crossword Genius

Don't heighten problem of acceptable behaviour (3,4,5)

Ross

I believe the answer is:

the done thing

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

'don't heighten problem' is the wordplay.
'problem' indicates anagramming the letters.
'dont'+'heighten'='dontheighten'
'dontheighten' with letters rearranged gives 'THE DONE THING'.

'of' is the link.

(Other definitions for the done thing that I've seen before include "Etiquette" , "That which is conventional, acceptable and desirable" , "normal behaviour" , "Socially approved behaviour" , "Acceptable behaviour" .)

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