I voted on changes, showing great love (8)
I believe the answer is:
devotion
'great love' is the definition.
(I've seen this before)
'i voted on changes' is the wordplay.
'changes' indicates an anagram.
'i'+'voted'+'on'='ivotedon'
'ivotedon' anagrammed gives 'DEVOTION'.
'showing' acts as a link.
(Other definitions for devotion that I've seen before include "Commitment to some purpose, religion say" , "Dedicated loyalty" , "Intense loyalty" , "Religious zeal" , "Feelings of ardent love" .)