Delightful plastic purse (5)
I believe the answer is:
super
'delightful' is the definition.
(I've seen this before)
'plastic purse' is the wordplay.
'plastic' indicates anagramming the letters (plastic can mean easily moulded).
'purse' is an anagram of 'SUPER'.
(Other definitions for super that I've seen before include "Excellent; police officer" , "Fantastic" , "senior cop" , "Gushily great, excellent" , "Outstanding" .)