Life __ (5)
(Other definitions for shelf that I've seen before include "Horizontal surface to put things on" , "sort of life" , "Whereon 2 down is not!" , "Works are held up by it" , "Flat rectangular structure in house for putting things on" .)
(Other definitions for cycle that I've seen before include "Regularly repeated sequence (of events)" , "Go by bike" , "Recurring series of events" , "Aeon" , "Series of works; bike" .)
(Other definitions for ghetto that I've seen before include "(Often slum) area occupied by minority group" , "Run-down area" , "Former Jewish quarter" , "Needy part of city" , "Densely populated slum area" .)