Answer: eel

AnswerCrossword Clue
EELSushi bar choice
EELKingklip
EELSargasso serpent
EELSlippery one
EELSushi staple
EELSlippery sea spawner
EELDragon roll component
EELFinless fish forbidden in kosher diets
EELEscalator's snakelike counterpart in a "SpongeBob SquarePants" game
EELPickled delicacy
EELSlippery creature
EELFoal:horse::elver:
EELFlexible fish
EELMigratory fish
EELSushi fish
EELSmorgasbord fish
EELElusive one
EELMoray, e.g.
EELElectric creature
EELWriggler
eela snakelike fish
EELSushi morsel
EELElectric swimmer
EELFish sans pelvic fins
EELLamprey
EELLong swimmer
EELMoray
EELSlippery customer
EELSlippery fish
EELSlithery fish
EELSmoked delicacy
EELConger
EELCave-dwelling fish
EELElder elver
EELGrown-up elver
EELScaleless fish
EELScaleless swimmer
EELSea shocker
EELSlithery swimmer
EELSushi snack