Soap company that is providing cover for Republican right (6)
I believe the answer is:
corrie
'soap' is the definition.
(nickname for TV soap Coronation Street)
'company that is providing cover for republican right' is the wordplay.
'company' becomes 'co' (abbreviation).
'that is' becomes 'ie' (synonyms).
'providing cover for' indicates putting letters inside.
'republican' becomes 'r' (abbreviation).
'right' becomes 'r' (common abbreviation).
'co'+'ie'='coie'
'r'+'r'='rr'
'coie' enclosing 'rr' is 'CORRIE'.
(Other definitions for corrie that I've seen before include "Glacial semi-circular hollow, aka cwm or cirque" , "Semicircular hollow on a hillside" , "Semicircular lake in a mountain" , "TV soap informally" .)