Compulsion gets half of us stuck in curry (6)
I believe the answer is:
duress
'compulsion' is the definition.
(thesaurus)
'half of us stuck in curry' is the wordplay.
'half of' indicates taking half.
'stuck in' indicates putting letters inside.
'curry' becomes 'dress' ('dress' can be a synonym of 'curry').
'us' halved is 'u'.
'u' put into 'dress' is 'DURESS'.
'gets' is the link.
(Other definitions for duress that I've seen before include "Constraint, Compulsion" , "The use of force or threats to get one's way" , "Illegal coercion" , "Constraint, coercion" , "Hardship" .)