The day before man finally evicted from flat (3)
I believe the answer is:
eve
'the day before' is the definition.
(eve is the night before something)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for eve that I've seen before include "See 27" , "Lady first appearing" , "Period immediately before" , "Night before an event" , "Day before a festival" .)