Godparent; promoter (7)
I believe the answer is:
sponsor
I believe this is a double definition.
'godparent' is the first definition.
(I've seen this in another clue)
'promoter' is the second definition.
(I've seen this before)
(Other definitions for sponsor that I've seen before include "One financially supporting event" , "Godparent at a baptism" , "Angel" , "One giving money in support of an event" , "One paying to support" .)