Totally in agreement! (5)
I believe the answer is:
right
'totally in agreement' is the definition.
The answer and definition can be both human attributes as well as being singular nouns.
Maybe you can see an association between them that I don't see?
This is the entire clue.
Can you help me to learn more?
(Other definitions for right that I've seen before include "Spot-on" , "The hand to the east when facing north" , "licence" , "Fair or just" , "Fit" .)