Not demanding rest (5)
I believe the answer is:
light
I believe this is a double definition.
'not demanding' is the first definition.
(I've seen this before)
'rest' is the second definition.
(light can mean to land or rest on the ground)
(Other definitions for light that I've seen before include "Not too demanding" , "Form of radiation - not serious" , "Delicate; illuminate" , "Beam" , "Eminent person" .)