Compliant with order to somehow end it (8)
I believe the answer is:
obedient
'compliant' is the definition.
('obedient' can be similar in meaning to 'compliant')
'order to somehow end it' is the wordplay.
'order' becomes 'obe' (**).
'to somehow' indicates an anagram.
'end'+'it'='endit'
'endit' is an anagram of 'dient'.
'obe'+'dient'='OBEDIENT'
'with' is the link.
(Other definitions for obedient that I've seen before include "Dutiful" , "Complying with commands" , "Willing to comply" , "Ready to submit to authority" , "Complying with orders" .)