Printer ink (5)
I believe the answer is:
toner
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">printer ink</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for toner that I've seen before include "Skin-cleansing lotion" , "Skin improver" , "Astringent liquid (to improve skin)" , "Material for printer" , "Powder used in printers" .)