Visually pleasing (11)
I believe the answer is:
picturesque
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">visually pleasing</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 picturesque that I've seen before include "Pretty -- quaint" , "Charming to look at" , "Visually pleasing" , "Strikingly beautiful (view)" , "Attractive, scenic" .)