A bit of a swine will never be a loser (3)
I believe the answer is:
win
'never be a loser' is the definition.
I can't tell whether this defines the answer.
'a bit of a swine will' is the wordplay.
'a bit of' indicates the answer is hidden within the clue (I've seen 'a bit' mean this (the answer is formed by a bit of the clue)).
'WIN' is hidden in the letters of 'swine will'.
Can you help me to learn more?
(Other definitions for win that I've seen before include "Succeed, conquer" , "Gain; triumph" , "Come first" , "Come out on top" , "Be victorious or succeed" .)