Having small swellings (7)
I believe the answer is:
nodular
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">having small swellings</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for nodular that I've seen before include "Lumpy" , "Having small lumps" , "Like knots" , "Knobbly" , "Knotted" .)