Ida's new fellow (3)
I believe the answer is:
dai
'fellow' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'ida's new' is the wordplay.
'new' indicates an anagram.
'ida' anagrammed gives 'DAI'.
Can you help me to learn more?
(Other definitions for dai that I've seen before include "Lloyd George?" , "Welshman's name" , "Welsh male name" , "Short for 'Dafydd'" , "Perhaps man in Cardiff" .)