Society pays attention to water borne danger (6)
I believe the answer is:
'water borne danger' is the definition.
I can't tell whether this definition defines the answer.
'society pays attention' is the wordplay.
'society' becomes 's' (common abbreviation in names of organisations).
'pays attention' becomes 'harks' (I've seen this in another clue).
'to' acts as a link.
Can you help me to learn more?
(Other definitions for sharks that I've seen before include "Feared fishes, may be basking or hammerhead" , "Large carnivorous fish" , "Voracious sea fish" .)