Willing to comply (8)
I believe the answer is:
amenable
'willing to comply' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for amenable that I've seen before include "Prepared to fall in with others' plans" , "Acquiescent" , "Easily influenced" , "Open and responsive to suggestion" , "Willing to be guided or controlled" .)