Prawn (6)
I believe the answer is:
shrimp
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">prawn</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for shrimp that I've seen before include "Runt" , "School member" , "Seafood" , "who gets bullied?" , "Crustacean; small child" .)