Makes watertight (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">makes watertight</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for seals that I've seen before include "Marine mammals" , "Makes waterproof" , "Great swimmers" , "Animals spotted on coast" , "they're impressive" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">makes watertight</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Another definition for caulks that I've seen is " Makes watertight".)