Silvan Dam suffers malicious damage (9)
I believe the answer is:
vandalism
'malicious damage' is the definition.
'vandalism' can be an answer for 'damage' (I have seen 'Wanton damage ' mean 'vandalism' so perhaps 'damage' could also mean 'vandalism'). I am unsure of the 'malicious' bit.
'silvan dam suffers' is the wordplay.
'suffers' is an anagram indicator.
'silvan'+'dam'='silvandam'
'silvandam' with letters rearranged gives 'VANDALISM'.
Can you help me to learn more?
(Other definitions for vandalism that I've seen before include "property crime" , "Wanton destruction" , "barbarous treatment" , "Graffiti artist's work" , "Wanton damage" .)