Provide a substitute for (7)
I believe the answer is:
replace
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">provide a substitute for</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 replace that I've seen before include "Provide a substitute for" , "Put back or substitute" , "Put back in original position" , "Substitute for (someone)" , "succeed" .)