Lubricating device (6,3)
I believe the answer is:
grease gun
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lubricating device</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 grease gun that I've seen before include "Lubricant applicator" , "Lubricating device" , "Lubricating pump" , "Lubricant applier" .)