Crystal gazer (4)
I believe the answer is:
seer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">crystal gazer</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 seer that I've seen before include "One divines the future" , "Distinguishing quality" , "Sage with 20ac" , "Fortune-teller" , "Prophet or clairvoyant" .)