English reader, a Liberal, concerned with voting (9)
I believe the answer is:
electoral
'voting' is the definition.
(I've seen this before)
'english reader a liberal' is the wordplay.
'english' becomes 'E' (abbreviation).
'reader' becomes 'lector' (synonyms).
'liberal' becomes 'l' (abbreviation).
'e'+'lector'+'a'+'l'='ELECTORAL'
'concerned with' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for electoral that I've seen before include "concerning voters" , "one kind of college" , "Like sort of college" , "Regarding choices" , "Relating to the voting system" .)