Shark that’s rude farts when swimming (9)
I believe the answer is:
fraudster
'shark' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'rude farts when swimming' is the wordplay.
'when swimming' indicates anagramming the letters.
'rude'+'farts'='rudefarts'
'rudefarts' with letters rearranged gives 'FRAUDSTER'.
'that's' is the link.
Can you help me to learn more?
(Other definitions for fraudster that I've seen before include "he'll take you for a ride" , "Con man" , "Charlatan" , "I'll take you for a ride" , "Conman" .)