The capital of Malta (8)
I believe the answer is:
valletta
'the capital of malta' is the definition.
('Valletta' can be a synonym of 'capital of malta')
This is all the clue.
(Other definitions for valletta that I've seen before include "Hard biscuit" , "Maltese capital" , "Malta's capital" , "Capital of Malta" , "my neighbouring capital" .)