Demanding (8)
'demanding' is the definition.
('exact' can be a synonym of 'demand')
This is all the clue.
(Other definitions for exacting that I've seen before include "Harsh" , "Making great demands, requiring real effort" , "Demanding great skill" , "Not easily satisfied" , "Making rigorous demands" .)
(Other definitions for asking that I've seen before include "Putting question or requesting" , "Presenting petition" , "being inquisitive" , "Proposing" , "It demands explanation!" .)
'demanding' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for taxing that I've seen before include "Physically or mentally demanding" , "hard work" , "Burdensome" , "Making heavy demands, like Revenue Commissioners" , "Onerous" .)
'demanding' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for needy that I've seen before include "lacking resources" , "penniless" , "Impecunious" , "Hard up" , "Penurious" .)