Art of growing dwarfed trees (6)
I believe the answer is:
bonsai
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">art of growing dwarfed trees</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 bonsai that I've seen before include "Dwarfed ornamental tree or shrub" , "Very little tree" , "small growth" , "Japanese craft of growing miniature trees" , "Mini-tree growing" .)