New version of a decent love story (8)
I believe the answer is:
anecdote
'story' is the definition.
(an amusing or interesting story)
'new version of a decent love' is the wordplay.
'new version of' is an anagram indicator.
'love' becomes 'o' (love means zero in tennis).
'a'+'decent'+'o'='adecento'
'adecento' with letters rearranged gives 'ANECDOTE'.
(Other definitions for anecdote that I've seen before include "One acted over interesting story" , "Short and amusing/interesting story" , "Short narration" , "A short interesting story, usually true" , "One acted (anag) - amusing reminiscence" .)