Fine Hungarian wine needing no introduction (4)
I believe the answer is:
okay
'fine' is the definition.
(thesaurus)
'hungarian wine needing no introduction' is the wordplay.
'hungarian wine' becomes 'tokay' (I've seen this before).
'needing no introduction' means to remove the first letter.
'tokay' with its initial letter removed is 'OKAY'.
(Other definitions for okay that I've seen before include "Approve, endorse" , "Alright" , "Fairly good; approve" , "Not terrific but acceptable" , "Leave" .)