Reds to revolt in this county? (6)
I believe the answer is:
dorset
'this county?' is the definition.
(I know that Dorset is a ceremonial county of England)
'reds to revolt' is the wordplay.
'revolt' is an anagram indicator.
'reds'+'to'='redsto'
'redsto' anagrammed gives 'DORSET'.
'in' acts as a link.
(Other definitions for dorset that I've seen before include "South coast county" , "Weymouth's county" , "area of Portland Bill" , "County adjoining 1" , "Rod set up in the English county" .)