Network of same shops (4)
I believe the answer is:
mesh
'network' is the definition.
(I know that network can be written as mesh)
'of same shops' is the wordplay.
'of' says the answer is hidden in the clue.
'MESH' can be found hidden inside 'same shops'.
(Other definitions for mesh that I've seen before include "Interweave - netting" , "Engagement" , "Entangle, entwine" , "fit together" , "Crossed wires" .)