Cleric to chance road detour (10)
I believe the answer is:
archdeacon
'cleric' is the definition.
(I've seen this before)
'chance road detour' is the wordplay.
'detour' is an anagram indicator.
'chance'+'road'='chanceroad'
'chanceroad' is an anagram of 'ARCHDEACON'.
'to' is the link.
(Other definitions for archdeacon that I've seen before include "Anglican clergyman" , "Church official" , "Church dignitary" , "Senior Christian cleric" , "Member of clergy" .)