Related Clues:

• A part of this starts 17-, 30-, 48- and 63-Across
• Curmudgeons
• Grouches
• Grumps
• Catch a few rays?
• Aquatic animal
• Ichthyologist's study
• Trawler's catch
• Saltwater catch
• Marine fish
• Drop a line
• Sea creatures with claws
• Person easily duped
• School group?
• Complainers