Tons following great British author, one married twice (8)
I believe the answer is:
bigamist
'one married twice' is the definition.
I can't judge whether this definition defines the answer.
'tons following great british author' is the wordplay.
'tons' becomes 't'.
'following' is a charade indicator (letters next to each other).
'great' becomes 'big' (synonyms).
'british author' becomes 'Amis' (Kingsley or Martin Amis).
'big'+'amis'='bigamis'
't' put after 'bigamis' is 'BIGAMIST'.
Can you help me to learn more?
(Other definitions for bigamist that I've seen before include "One with two other halves?" , "One with a partner too many" , "Marital cheat" , "One who marries more than once illegally" , "lawbreaking union member" .)