Hard physical work (5,6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hard physical work</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for elbow grease that I've seen before include "Vigorous physical effort" , "Hard rubbing (colloq.)" , "Hard physical effort" , "Hard physical work (informal)" , "Vigorous physical labour involving hard rubbing" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hard physical work</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for labour that I've seen before include "Old political party?" , "Workers" , "Agonising time" , "opposition" , "End of term" .)