Hesitate over rejecting a bachelor's joint (5)
I believe the answer is:
elbow
'joint' is the definition.
(joint of the body)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for elbow that I've seen before include "sack?" , "Barge" , "Nudge" , "part of the body" , "Nudging joint?" .)