Bulge (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bulge</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 swell that I've seen before include "part of organ" , "Person of high social standing" , "Bulge; a toff" , "Expand - big wig" , "Become larger in size" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bulge</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for protuberance that I've seen before include "Bit jutting out" , "Something sticking out" , "Swelling" , "Something that sticks out" , "Outward bulge - not cupbearer (anag)" .)