Long, drawn vote securing Independent win (7)
I believe the answer is:
achieve
'win' is the definition.
(I've seen this in another clue)
'long drawn vote securing independent' is the wordplay.
'long' becomes 'ache' (to long for something is to ache for it).
'drawn vote' becomes 've' (I am not sure about this - if you are sure you should believe this answer much more).
'securing' indicates putting letters inside.
'independent' becomes 'i'.
'ache'+'ve'='acheve'
'acheve' going around 'i' is 'ACHIEVE'.
Can you help me to learn more?
(Other definitions for achieve that I've seen before include "Manage to get" , "Bring about, accomplish" , "Effect" , "wrap up" , "Attain successfully" .)