Sty (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sty</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that sty can be written as pigpen)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for pigpen that I've seen before include "that accommodates swine" , "Sty (American)" , "Sty for swine" , "tip" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sty</span>' is the definition.<br/ ><span class="explanation-format__explanation">(both can mean an animal enclosure)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for pen that I've seen before include "'The ... is mightier than the sword'" , "See 20" , "Writing implement" , "American jug?" , "Writing tool" .)