Chanced taking a wild ride round the borders of Suffolk (6)
I believe the answer is:
risked
'chanced' is the definition.
('risk' can be a synonym of 'chance')
'a wild ride round the borders of suffolk' is the wordplay.
'a wild' indicates anagramming the letters.
'round' indicates putting letters inside.
'the borders of' means to remove the middle letters.
'suffolk' with its centre removed is 'sk'.
'ride' anagrammed gives 'ried'.
'ried' enclosing 'sk' is 'RISKED'.
'taking' is the link.
(Other definitions for risked that I've seen before include "Took a chance, gambled" , "Exposed to danger or loss" , "Incurred the chance of misfortune" .)