Where the boatman gets badly out of line (8)
I believe the answer is:
manitoba
This clue might be a double definition.
'where the boatman' is the first definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'badly out of line' is the second definition.
The definition and answer can be both locations as well as being singular nouns.
Maybe there's an association between them I don't understand?
'gets' acts as a link.
Can you help me to learn more?
(Other definitions for manitoba that I've seen before include "part of N America" , "northern territory" , "region bordering Hudson Bay" , "Winnipeg area" , "part of Canada" .)