Memory aid (8)
I believe the answer is:
mnemonic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">memory aid</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for mnemonic that I've seen before include "Letters aiding memory" , "Verse etc to aid memory" , "Device for remembering things" , "Device to aid memory recall" , "It reminds us" .)