Small salty fish (7)
I believe the answer is:
anchovy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small salty fish</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for anchovy that I've seen before include "Small salty fish" , "Small edible fish" , "Small fish of herring family, nice on toast" , "Small, salty-tasting fish" , "Small fish, may be served with toast." .)