Enjoying pre-wedding party in Greece (6)
I believe the answer is:
athens
'in greece' is the definition.
('Athens' is part of 'greece')
'enjoying pre-wedding party' is the wordplay.
I cannot quite understand how this works, but
'party' could be 'hen' (hen party is a kind of party) and 'hen' is present in the answer.
The remaining letters 'ats' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for athens that I've seen before include "city in Greece" , "Capital of Greece" , "Tan she got in Greece" , "Mediterranean capital" , "Plato's birthplace" .)