Shoots mother in the city (7)
I believe the answer is:
potsdam
'city' is the definition.
(I have seen 'German city' mean 'potsdam' so perhaps 'city' could also mean 'potsdam')
'shoots mother' is the wordplay.
'shoots' becomes 'pots' (I can't justify this - if you can you should believe this answer much more).
'mother' becomes 'dam' (female parent of an animal).
'pots'+'dam'='POTSDAM'
'in the' acts as a link.
Can you help me to learn more?
(Other definitions for potsdam that I've seen before include "Brandenburg capital" , "conference city" , "German city" , "WW two 1945 conference; stop mad (anag.)" , "Site of nineteen forty fve conference" .)