Tidying mess, showing self-respect (7)
I believe the answer is:
dignity
'self-respect' is the definition.
(synonyms)
'tidying mess' is the wordplay.
'mess' is an anagram indicator.
'tidying' with letters rearranged gives 'DIGNITY'.
'showing' acts as a link.
(Other definitions for dignity that I've seen before include "Sense of self-pride" , "Decorum, propriety" , "Nobleness" , "Tidying (anag.)" , "Calm and serious manner" .)