Frequented by ghosts? (7)
I believe the answer is:
haunted
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">frequented by ghosts</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 haunted that I've seen before include "Ghost-ridden" , "Full of ghosts" , "Worried" , "with the ghost still around?" , "Possessed" .)