Derry's new cup (5)
I believe the answer is:
ryder
'cup' is the definition.
Both the definition and answer are singular nouns.
Perhaps you can see an association between them that I don't see?
'derry's new' is the wordplay.
'new' indicates anagramming the letters.
'derry' anagrammed gives 'RYDER'.
Can you help me to learn more?
(Other definitions for ryder that I've seen before include "-- Cup, golf trophy" , "sporting contest" , "The . . . . . Cup - international golf tournament won by Europe 2006" , "-- Cup, biennial golf tournament" .)