Deficiency (4)
'deficiency' is the definition.
(I know that deficiency can be written as lack)
This is the entire clue.
(Other definitions for lack that I've seen before include "Deficiency or want" , "Be wanting or without" , "Deficiency (of something)" , "Be without or short of" , "Shortage" .)
'deficiency' is the definition.
(I know that paucity is a type of scarceness)
This is the entire clue.
(Other definitions for paucity that I've seen before include "Dearth, scarcity" , "Shortage" , "Poverty" , "Insufficiency, dearth" , "deficiency" .)