Light in colour (4)
I believe the answer is:
pale
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">light in colour</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 pale that I've seen before include "Very light coloured" , "Light-coloured" , "Upright member" , "Colourless" , "beyond which one is out of line?" .)