Counsels an organisation to see that it's been explicitly agreed (10)
I believe the answer is:
consensual
'that it's been explicitly agreed' is the definition.
I can't judge whether this defines the answer.
'counsels an organisation' is the wordplay.
'organisation' is an anagram indicator.
'counsels'+'an'='counselsan'
'counselsan' anagrammed gives 'CONSENSUAL'.
'to see' is the link.
Can you help me to learn more?
(Other definitions for consensual that I've seen before include "Involving free agreement" , "No such decision imposed" .)