An appropriate cry of delight, seafood turning up β here? (9)
I believe the answer is:
barcelona
'an appropriate cry of delight seafood turning up here?' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
This is the entire clue.
(Other definitions for barcelona that I've seen before include "Major city in NE Spain" , "Spanish city and seaport" , "Spain's second largest city" , "Largest Spanish port" , "coastal city" .)