Large area left on the map of Canada (7)
I believe the answer is:
alberta
'map of canada' is the definition.
The definition and answer can be both locations as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'large area left on' is the wordplay.
'large' becomes 'berta' (I can't justify this - if you can you should give a lot more credence to this answer).
'area' becomes 'a' (maths abbreviation).
'left' becomes 'l' (common abbreviation).
'on' means one lot of letters go next to another.
'a'+'l'='al'
'berta' put after 'al' is 'ALBERTA'.
'the' is the link.
Can you help me to learn more?
(Other definitions for alberta that I've seen before include "Einstein" , "part of Canada" , "Canadian province, capital Edmonton" , "Banff province" , "Where is Jasper" .)