Retrospective name associated with Ireland (4)
I believe the answer is:
erin
'ireland' is the definition.
(poetic name for Ireland)
'retrospective name associated' is the wordplay.
'retrospective' says the letters should be written in reverse.
'name' becomes 'n' (common abbreviation e.g. on forms).
'associated' becomes 'ire' (I can't explain this - if you can you should believe this answer much more).
'n'+'ire'='nire'
'nire' reversed gives 'ERIN'.
'with' is the link.
Can you help me to learn more?
(Other definitions for erin that I've seen before include "country" , "Another name for 11 ac" , "that faces Atlantic" , "Romantic, archaic name for Ireland" , "Literary term for Ireland" .)