Dicky O'Neill's forename (6)
I believe the answer is:
lionel
'forename' is the definition.
Both the answer and definition are singular nouns.
Maybe there's a link between them I don't understand?
'dicky o'neill's' is the wordplay.
'dicky' indicates an anagram (dicky can mean not functioning properly).
'oneill' is an anagram of 'LIONEL'.
Can you help me to learn more?
(Other definitions for lionel that I've seen before include "- Bart, (Oliver!)" , "Guy" , "Boy" , "Oil Len badly for another man" , "Blair possibly" .)