Meticulous demand (5)
I believe the answer is:
exact
I believe this is a double definition.
'meticulous' is the first definition.
(I've seen this before)
'demand' is the second definition.
(I know that demand is the is a more specific form of the action of exact.)
(Other definitions for exact that I've seen before include "Precisely accurate" , "Correct; insist on" , "On the nail" , "Precise and strictly correct" , "Spot-on" .)