Dumplings Greek character provided after Conservative leader in Greece turned up (7)
I believe the answer is:
gnocchi
'dumplings' is the definition.
(I've seen this before)
'greek character provided after conservative leader in greece turned up' is the wordplay.
'greek character' becomes 'chi' (letter from the Greek alphabet).
'provided after' says to put letters next to each other.
'conservative' becomes 'con' (abbreviation for Conservative).
'leader in' suggests taking the first letters.
'turned up' says the letters should be written in reverse.
The first letter of 'greece' is 'g'.
'con'+'g'='cong'
'cong' reversed gives 'gnoc'.
'chi' after 'gnoc' is 'GNOCCHI'.
(Other definitions for gnocchi that I've seen before include "Dumpling dish" , "Italian potato dumplings" , "Dough" , "Small Italian dumplings similar to pasta" , "Pasta or potato dumplings" .)