It's not true that part of Limoges is here in Belgium! (5)
I believe the answer is:
liege
'here in belgium' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'it's not true that part of limoges' is the wordplay.
'it's not true' becomes 'lie' (lies are false or untrue).
'that part of limoges' becomes 'ge' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'lie'+'ge'='LIEGE'
'is' acts as a link.
Can you help me to learn more?
(Other definitions for liege that I've seen before include "Belgian city or ancient lord" , "Belgian city on Meuse" , "Province of Belgium" , "Owing feudal allegiance" , "Feudal vassal from a Belgian city" .)