Sector (4)
'sector' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for area that I've seen before include "District; plot" , "Length multiplied by breadth" , "Speaking formally to (someone)" , "District; locale" , "Field of activity or surface" .)
'sector' is the definition.
(I know that sector can be written as zone)
This is all the clue.
(Other definitions for zone that I've seen before include "Area; belt" , "Designated or defined area" , "Bitter, pungent" , "Region with particular characteristics" , "District, area" .)