Throw with effort (5)
I believe the answer is:
heave
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">throw with effort</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 heave that I've seen before include "Struggle to move" , "past Hove" , "Produce (a sigh); lift" , "Pull hard; (sea) swell" , "Lift or haul with great effort" .)