Drier (5)
(Other definitions for towel that I've seen before include "Bathroom cloth" , "Piece of absorbent cloth or paper for drying" , "Dryer" , "Owlet (anag)" , "what sweater needs?" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">drier</span>' is the definition.<br/ ><span class="explanation-format__explanation">(frame for airing wet clothes)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for airer that I've seen before include "Support for drying" , "What launderers may use" , "Clothes-horse" , "Dryer" , "Clothes horse" .)