Scotland sorts out constant burden (9)
I believe the answer is:
albatross
'constant burden' is the definition.
'albatross' can be an answer for 'burden' (I've seen this before). I am not sure about the 'constant' bit.
'scotland sorts out' is the wordplay.
'scotland' becomes 'Alba' (Gaelic name for Scotland).
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'sorts' anagrammed gives 'tross'.
'alba'+'tross'='ALBATROSS'
Can you help me to learn more?
(Other definitions for albatross that I've seen before include "a mariner had a shot at?" , "Large seabird found among lost Arabs" , "Great shot" , "Very good score" , "potentially a disaster if one's damaged at sea" .)