Ringleader about to be seen in county court? That's right (7)
I believe the answer is:
correct
'right' is the definition.
(I know that right can be written as correct)
'ringleader about to be seen in county court?' is the wordplay.
'ringleader' becomes 'r' (first letter of ring).
'about' becomes 're' (regarding).
'to be seen in' indicates putting letters inside.
'county' becomes 'co'.
'court?' becomes 'ct' (abbreviation used in road names).
'r'+'re'='rre'
'co'+'ct'='coct'
'rre' placed into 'coct' is 'CORRECT'.
'that's' is the link.
(Other definitions for correct that I've seen before include "Set right - punish" , "True; put right" , "Free from error" , "Right a wrong" , "Adjust, make right" .)