Skyrocket (4)
I believe the answer is:
soar
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">skyrocket</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 soar that I've seen before include "Rise high into the air" , "Rise to a great height" , "Rise high in flight" , "take to the air" , "go high" .)