A couple of small streets’ staff (5)
I believe the answer is:
stave
'staff' is the definition.
(I know that staff can be written as stave)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for stave that I've seen before include "System of five horizontal lines in written music" , "Stanza of a poem" , "Wooden piece of barrel" , "Bar" , "Strip of wood" .)