Sorted out exit terms for hardliner (9)
I believe the answer is:
extremist
'hardliner' is the definition.
(someone with extreme views or policies)
'sorted out exit terms' is the wordplay.
'sorted out' indicates anagramming the letters.
'exit'+'terms'='exitterms'
'exitterms' anagrammed gives 'EXTREMIST'.
'for' is the link.
(Other definitions for extremist that I've seen before include "One with very radical views" , "One with highly non-standard views" , "outwardly fanatical" , "immoderate person" , "Revolutionary" .)