Graph line indication (5)
I believe the answer is:
trend
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">graph line indication</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 trend that I've seen before include "Prevailing direction" , "Vogue, tendency" , "General direction of movement" , "The way things are going?" , "Leaning; fashion" .)