Controversy about Republican vote's final shame (9)
I believe the answer is:
disrepute
'shame' is the definition.
(thesaurus)
'controversy about republican vote's final' is the wordplay.
'controversy' becomes 'dispute' (a dispute is a disagreement or controversy).
'about' indicates putting letters inside.
'republican' becomes 'R' (abbreviation).
'final' suggests the final letters.
The final letter of 'vote' is 'e'.
'r'+'e'='re'
'dispute' enclosing 're' is 'DISREPUTE'.
(Other definitions for disrepute that I've seen before include "get a bad name" , "Ignominy" , "State of being held in low public esteem" , "Ill fame" .)