The talk of Liverpool (6)
I believe the answer is:
scouse
'liverpool' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'the talk of' is the wordplay.
I cannot really understand how this works, but
'of' could be 'o' and 'o' is found in the answer.
The remaining letters 'scuse' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for scouse that I've seen before include "English dialect spoken in Liverpool" , "another city's dialect" , "What they speak in Liverpool?" , "(Someone) from Liverpool" , "Liverpudlian (colloq.)" .)