Possible Clues:

• Actress Graff
• Yellowfin tuna, more chicly
• Tuna in a pupu platter
• Big Polynesian fish
• Fish served tartare
• 23-Across tuna
• Spicy tuna roll tuna
• Tuna in a spicy poke bowl
• Sushi fish also called yellowtail
• Tuna that may top a rainbow roll