In a story, it's no good to confuse things (6)
I believe the answer is:
tangle
'confuse things' is the definition.
'tangle' can be an answer for 'confuse' (I've seen this before). I am not sure about the 'things' bit.
'in a story it's no good' is the wordplay.
'in' means one lot of letters goes inside another.
'a story' becomes 'tale' (synonyms).
'it's no good' becomes 'ng' (abbreviation).
'tale' placed around 'ng' is 'TANGLE'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for tangle that I've seen before include "Enmesh, snarl up" , "Snarl or confused mass" , "Twist together into a confusing mass" , "jungle" , "Snarl or embroil" .)