Related Clues:

• Marlin or mackerel
• Sneakily probe (for)
• Aquatic fly?
• Follower of angel or devil
• School member
• Angle (and a three-word hint to this puzzle's theme)
• Minnow, e.g.
• What one might do for compliments
• Try for flounder
• Perch, for one
• Worm lovers
• Kids card game
• Angler's catch
• Burbot or turbot
• Guppy, e.g.