Japanese rice and fish dish (5)
I believe the answer is:
sushi
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">japanese rice and fish dish</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 sushi that I've seen before include "Japanese rice-based dish" , "rice dishes" , "put away in Japan" , "Food from Japan" , "Cold rice balls with raw fish" .)