Set aside for a purpose (7)
I believe the answer is:
earmark
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">set aside for a purpose</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 earmark that I've seen before include "Set aside, designate" , "Set specially aside" , "Set aside for later" , "Reserve for later use" , "Allocate for a purpose" .)