Joint in Munich in Germany (5)
I believe the answer is:
hinge
'joint' is the definition.
(I know that hinge is a type of joint)
'in munich in germany' is the wordplay.
'in' indicates the answer is hidden within the clue.
'HINGE' is hidden within 'munich in germany'.
(Other definitions for hinge that I've seen before include "Pivotal point" , "What a door depends upon!" , "Door support" , "door open because of this?" , "Joint on which something swings" .)