Opts to wrap a torn vest round one's head (5)
I believe the answer is:
votes
'opts to wrap a' is the definition.
I can't tell whether this defines the answer.
'torn vest round one's head' is the wordplay.
'torn' indicates an anagram.
'round' means one lot of letters goes inside another.
'head' indicates taking the first letters.
The initial letter of 'ones' is 'o'.
'vest' is an anagram of 'vtes'.
'vtes' enclosing 'o' is 'VOTES'.
Can you help me to learn more?
(Other definitions for votes that I've seen before include "Choices expressed by electorate" , "Elects by ballot" , "Chooses a candidate" , "often indicated by hands" , "Ballots" .)