Assent (6)
'assent' is the definition.
(I know that assent is a more specific form of agree)
This is all the clue.
(Other definitions for agree that I've seen before include "Have the same opinion" , "Think alike" , "Go well together" , "Allow" , "Arrive at a settlement" .)
'assent' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for accede that I've seen before include "Agree to what is proposed" , "Grant or consent" , "Assume" , "Allow, give consent" , "Agree (to) - come into office" .)