Displeased with the tarty appearance (5)
I believe the answer is:
ratty
'displeased' is the definition.
Both the answer and definition are adjectives. Perhaps there's a link between them I don't understand?
'the tarty appearance' is the wordplay.
'tarty' can be anagrammed to 'RATTY'.
Though, I'm not clear how this is indicated.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for ratty that I've seen before include "Waspish" , "Irritable (informal)" , "Irritable (colloq.)" , "Wretched" , "One messing about in a boat" .)