One who shoes horses (7)
I believe the answer is:
farrier
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">one who shoes horses</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 farrier that I've seen before include "One who shoes horses" , "Person who shoes horses" , "Smith who shoes horses" , "Horse shoer" , "Shoer of horses" .)