Relating to the forehead (7)
I believe the answer is:
frontal
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">relating to the forehead</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 frontal that I've seen before include "Altar hanging" , "altar covering" , "Relating to the forehead" , "in the van?" , "Decorative church item" .)