Sausage left in the city (9)
I believe the answer is:
devonport
'the city' is the definition.
Both the definition and answer are singular nouns.
Perhaps you can see an association between them that I can't see?
'sausage left' is the wordplay.
'sausage' becomes 'devon' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'left' becomes 'port' (left side of a ship - opposite of starboard).
'devon'+'port'='DEVONPORT'
'in' acts as a link.
Can you help me to learn more?
(Another definition for devonport that I've seen is " Royal Navy base in the south-west".)