Marine animal (3,4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">marine animal</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sea lion that I've seen before include "Large-eared marine mammal, sometimes performing" , "Marine animal, used as a circus performer" , "Creature" , "Large-eared mammal of Pacific Ocean, like Leo" , "one often immersed in salty water" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">marine animal</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sponge that I've seen before include "Sea animal often found in bathroom" , "that lives in the sea" , "Absorbent marine organism" , "drunkard or > hanger-on" , "Porous mass of fibres found in the ocean" .)