Eyelash make-up (7)
I believe the answer is:
mascara
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">eyelash make-up</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 mascara that I've seen before include "that accentuates lashes" , "Makeup used to darken and thicken the eye lashes" , "Type of make-up" , "Make-up for eyelashes" , "black application" .)