Roma's new fellow? (4)
I believe the answer is:
omar
'fellow?' is the definition.
Both the definition and answer are singular nouns.
Perhaps there's an association between them I don't understand?
'roma's new' is the wordplay.
'new' is an anagram indicator.
'roma' is an anagram of 'OMAR'.
Can you help me to learn more?
(Other definitions for omar that I've seen before include "- Khayyam, Pers. poet" , "and 16 Down: Persian poet" , "Arab" , "- - Sharif (films)" , "- Sharif, film actor" .)