Related Clues:

• Excellent swimmers
• Drawing done, else half finished
• See 16 down
• Powdery crayon
• Trout or tuna
• 66-Across, e.g
• Rays, e.g
• Angle; trawl
• Part of the Sci-Fi's hypothesis produced by the group in school
• Use the items found at the ends of the answers to 20-, 31-, 47- and 56-Across
• You'll need 26 across to do this to drop a line
• Look (for), as a compliment
• Drop a line to one of those in 33 down
• Drop a line to half of those in 9 across
• __ and chips