Distance made by set of clubs? (6)
I believe the answer is:
league
This clue is a double definition.
'distance' is the first definition.
'set of clubs?' is the second definition.
(eg a football league, a set of football clubs)
'made by' is the link.
(Other definitions for league that I've seen before include "Federation" , "Group of sports clubs; about three miles" , "See 11" , "Competing group of clubs" , "Alliance - three (poetic) miles" .)