Surround, encircle (4)
I believe the answer is:
gird
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">surround</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(girding is a kind of surrounding)</span><br/ ><br/ >'<span class="explanation-format__original">encircle</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for gird that I've seen before include "ring" , "Encircle - fasten with belt" , "Put a belt on" , "Surround" , "Steel" .)