Spread slander as such (8)
I believe the answer is:
disperse
'spread' is the definition.
(synonyms)
'slander as such' is the wordplay.
'slander' becomes 'dis' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'as such' becomes 'per se' (synonyms).
'dis'+'perse'='DISPERSE'
Can you help me to learn more?
(Other definitions for disperse that I've seen before include "Scatter, disseminate" , "Scatter, dispel" , "Scatter in all directions" , "'Break up, spread out (8)'" , "Scatter or disband" .)