Just so honourable? (5)
I believe the answer is:
right
I believe this clue is a triple definition!
'just' is the first definition.
(associated in meaning)
'so' is the second definition.
(thesaurus)
'honourable?' is the third definition.
('right' can be similar in meaning to 'honourable')
(Other definitions for right that I've seen before include "''The customer is always .....''" , "Prerogative" , "Fit" , "Properly" , "Punch" .)