Improving trend (6)
I believe the answer is:
upturn
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">improving trend</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 upturn that I've seen before include "Improvement in fortunes" , "Improving trend" , "economic improvement" , "Improved trend in business or fortune" , "Improvement in results" .)