Prepare (oneself) (5)
(Other definitions for steel that I've seen before include "Mixture of carbon and iron" , "nerve" , "Determination, metal" , "Strong metal" , "Structural metal alloy" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">prepare oneself</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 get ready that I've seen before include "third of three" , "Prepare oneself" .)