Burst out (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">burst out</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for erupt that I've seen before include "Blow up like volcano" , "Break out dramatically" , "Emit lava" , "go up" , "suddenly burst out" .)
(Other definitions for erupted that I've seen before include "Blew up or out as volcano may" , "Blew up like volcano" , "Broke out (like Etna)" , "Broke out suddenly" .)