Refuse to come down (7)
I believe the answer is:
decline
I believe this is a double definition.
'refuse' is the first definition.
('decline' can be a synonym of 'refuse')
'come down' is the second definition.
(thesaurus)
'to' acts as a link.
(Other definitions for decline that I've seen before include "Start to fail" , "Say no or lose strength" , "Turn down; deteriorate" , "Fade" , "Dwindle" .)