Rent provided by tenant or neighbour (4)
I believe the answer is:
torn
'rent' is the definition.
(synonyms)
'provided by tenant or neighbour' is the wordplay.
'provided by' indicates the answer is hidden within the clue (the answer is provided within the clue).
'TORN' is hidden within 'tenant or neighbour'.
(Other definitions for torn that I've seen before include "'-- Curtain', 1966 Hitchcock film" , "Ripped - undecided" , "Divided" , "Lacerated - in two minds" , "Ragged" .)