This sounds a lot like Cockney grinding up rusty hinges with ale (7,7)
I believe the answer is:
estuary english
'this sounds a lot like cockney' is the definition.
(accent similar to a Cockney accent)
'grinding up rusty hinges with ale' is the wordplay.
'grinding up' indicates an anagram (letters must be ground into a new form).
'with' means one lot of letters go next to another.
'rusty'+'hinges'='rustyhinges'
'rustyhinges' after 'ale' is 'alerustyhinges'.
'alerustyhinges' anagrammed gives 'ESTUARY ENGLISH'.
(Other definitions for estuary english that I've seen before include "Form of language" , "Sort of language" , "Accent that's been spreading out from London" , "manner of speaking" .)