Who will vote for a change of role etc? (7)
I believe the answer is:
elector
'who will vote' is the definition.
I can't tell whether this defines the answer.
'change of role etc?' is the wordplay.
'change of' indicates an anagram (the letter order is changed).
'role'+'etc'='roleetc'
'roleetc' with letters rearranged gives 'ELECTOR'.
'for a' is the link.
Can you help me to learn more?
(Other definitions for elector that I've seen before include "one with a voice" , "One entitled to vote" , "one with an X" , "Potential voter" , "Constituent" .)