Place where officer has ejected tenant? (4)
I believe the answer is:
lieu
'place' is the definition.
('lieu' can be a synonym of 'place')
'officer has ejected tenant?' is the wordplay.
'officer' becomes 'lieutenant' (lieutenant is a kind of officer).
'has ejected' suggests deleting specific letters.
'lieutenant' with 'tenant' taken away is 'LIEU'.
'where' acts as a link.
(Other definitions for lieu that I've seen before include "The substitute" , "'In ..., instead (4)'" , "In ... of; in exchange for" , "Place - position" , "Stead - place" .)