Daly of "Cagney and Lacey" (4)
I believe the answer is:
tyne
'daly of cagney and lacey' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tyne that I've seen before include "Geordie river" , "Serve as evidence for" , "Northumbrian river" , "Flower" , "English river" .)