Tile work
I believe the answer is:
mosaic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tile work</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for mosaic that I've seen before include "Design of many small pieces" , "Inlaid stone decoration" , "Decorative work of small hard pieces" , "Pattern made with tiny pieces of stone or glass" , "Picture made with pieces of glass and stone" .)