Klaxon (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">klaxon</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for hooter that I've seen before include "Siren, steam whistle" , "Uphill stone pusher (Gk. myth)" , "Car horn or slang nose" , "It makes a loud noise" , "Siren, horn; nose" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">klaxon</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 horn that I've seen before include "Musical instrument - antler" , "Hooter" , "Bony outgrowth on an animal" , "Brass musical instrument" , "See 1 Across" .)