Issue on subject of tenancy (7)
I believe the answer is:
release
'issue' is the definition.
(issue can mean to release or give out)
'on subject of tenancy' is the wordplay.
'on subject of' becomes 're' (re can mean on a particular topic).
'tenancy' becomes 'lease' (lease for a property).
're'+'lease'='RELEASE'
(Other definitions for release that I've seen before include "Possibly film" , "New film" , "Set free - publish" , "record" , "Authorise publication" .)