Great purse, ruined (5)
I believe the answer is:
super
'great' is the definition.
(both can mean excellent)
'purse ruined' is the wordplay.
'ruined' indicates anagramming the letters.
'purse' with letters rearranged gives 'SUPER'.
(Other definitions for super that I've seen before include "Gushily great, excellent" , "Prefix meaning over-excellent!" , "Prefix meaning above or informally great" , "(Of product) of extra fine quality" , "Outstanding" .)