Blew a horn (6)
I believe the answer is:
tooted
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">blew a horn</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tooted that I've seen before include "Made sound with car horn" , "Sounded the horn" , "Used the horn" , "Made short sound as of horn or whistle" .)