Minister of a sport, perhaps (6)
I believe the answer is:
pastor
'minister' is the definition.
(type of church minister)
'a sport perhaps' is the wordplay.
'perhaps' indicates anagramming the letters.
'a'+'sport'='asport'
'asport' is an anagram of 'PASTOR'.
'of' is the link.
(Other definitions for pastor that I've seen before include "who may provide a service" , "Old shepherd" , "One with a flock (of people)" , "Member of the clergy" , "To spar with clergyman" .)