Garage worker (8)
I believe the answer is:
mechanic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">garage worker</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 mechanic that I've seen before include "Car repairer" , "Grease-monkey" , "One repairs cars, say" , "One employed by F1 team" , "Engineer" .)