Ref taking something to champ at end of game arranged by hosts (7)
I believe the answer is:
arbiter
'ref' is the definition.
(I've seen this before)
'something to champ at end of game arranged by hosts' is the wordplay.
I cannot quite understand how this works, but
'something' could be 'it' (I've seen this in other clues) and 'it' is located in the answer.
This explanation may well be incorrect...
'taking' is the link.
Can you help me to learn more?
(Other definitions for arbiter that I've seen before include "Judge - mediator" , "Ref" , "One has the authority to settle disputes" , "Judge, umpire" , "One has the authority to resolve disputes" .)