Onerous
'onerous' is the definition.
(I know that onerous can be written as taxing)
This is the entire clue.
(Other definitions for taxing that I've seen before include "Physically or mentally demanding" , "Getting money off people" , "Making great demands" , "Making heavy demands, like Revenue Commissioners" , "Burdensome" .)
'onerous' is the definition.
(I know that onerous can be written as burdensome)
This is the entire clue.
(Other definitions for burdensome that I've seen before include "Oppressive, wearisome" , "Onerous" .)