Be agreeable, we take it (6)
I believe the answer is:
accept
'take it' is the definition.
(thesaurus)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for accept that I've seen before include "Receive what's offered" , "one wouldn't say no to this" , "Regard with approval; take on" , "Believe to be correct; take on" , "Undertake" .)