No bad end, you'll agree (3)
I believe the answer is:
nod
'agree' is the definition.
(I've seen this before)
'no bad end' is the wordplay.
'end' indicates one should take the final letters.
The final letter of 'bad' is 'd'.
'no'+'d'='NOD'
'you'll' is the link.
This may not be right. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for nod that I've seen before include "Appear to fall asleep" , "Cain left Eden for the Land of . . ." , "Signal with the head" , "slight bow" , "Gesture; agree" .)