Baby's soft shoe (6)
I believe the answer is:
bootee
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">baby's soft shoe</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for bootee that I've seen before include "Baby's woollen shoe" , "Baby's footwear" , "Knitted foot-covering" , "Jolly" , "Soft, woolly baby's shoe" .)