Pass ring road, sadly in a state (8)
I believe the answer is:
colorado
'in a state' is the definition.
(I've seen this before)
'pass ring road sadly' is the wordplay.
'pass' becomes 'col' (col is a kind of pass**).
'ring' becomes 'o'.
'sadly' is an anagram indicator.
'road' is an anagram of 'rado'.
'col'+'o'+'rado'='COLORADO'
(Other definitions for colorado that I've seen before include "American state, capital Denver" , "Beetle whose larvae destroy potato plants" , "Boulder's state" , "US state (with a beetle)" , "State in the Rockies" .)