Related Clues:

• Sheep herders
• Disreputable lenders
• When cruising hear fish
• Hammerheads, e.g
• Dread leaving modern dance, as that lot don't miss a trick perhaps
• Rustlers shepherds lay hold of
• Flimflammers
• Hammerheads and others
• People who target the starts of 17-, 30-, 40- and 57-Across
• Bad business partners
• Clanswomen reject laws produced by hustlers
• Predatory fish with an acute sense of smell
• Beasts observed from underwater cages
• The title characters of 1988's 'Dirty Rotten Scoundrels,' e.g
• Predators in pool halls