Person from America described khaki-coloured pant as all right? (7)
I believe the answer is:
chinook
'person from america described khaki-coloured pant' is the definition.
I can't judge whether this defines the answer.
'all right?' is the wordplay.
'all' becomes 'chino' (I can't explain this - if you can you should give a lot more credence to this answer).
'right?' becomes 'ok' (OK can mean right or appropriate).
'chino'+'ok'='CHINOOK'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for chinook that I've seen before include "North American wind, native or language" , "warm one" , "nickname of US State" , "Arctic wind" , "Rocky Mountains' wind - helicopter" .)