Did a smith's job (4)
I believe the answer is:
shod
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">did a smith's job</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 shod that I've seen before include "(Of a horse) with shoes on" , "Like a horse that's been to a farrier" , "Wearing footgear" , "Exclamation used to frighten animals away" , "Fitted with shoes" .)