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 an anagram.
'round' means one lot of letters goes inside another.
'the borders of' suggests removing the centre.
'suffolk' with its middle taken out is 'sk'.
'ride' with letters rearranged gives 'ried'.
'ried' enclosing 'sk' is 'RISKED'.
'taking' acts as a 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" .)