Secures rent for one of a group of shops (5,5)
I believe the answer is:
chain store
'one of a group of shops' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'secures rent' is the wordplay.
'secures' becomes 'chains' (chaining is a kind of securing).
'rent' becomes 'tore' ('rend' and 'tear' both mean to rip something).
'chains'+'tore'='CHAIN-STORE'
'for' is the link.
Can you help me to learn more?
(Other definitions for chain store that I've seen before include "an outlet" , "One of a series of firm's shops" , "shop" .)