Cliff, no good, going around bend (3)
I believe the answer is:
arc
'bend' is the definition.
(arc can mean to curve or bend)
'cliff no good going around' is the wordplay.
I cannot really see how this works, but
'around' could be 'c' (abbreviation for 'circa') and 'c' is found within the answer.
The remaining letters 'ar' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for arc that I've seen before include "less than the complete circuit" , "Light" , "circle? Not entirely" , "Curving trajectory" , "Part of a circular line" .)