Daydreamer (8)
I believe the answer is:
escapist
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">daydreamer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that escapist is a type of daydreamer)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for escapist that I've seen before include "One who lives in dreamland, a fantasist" , "My interest is not of this world" , "One indulging in fantasy" , "One who habitually fantasises" , "One avoiding reality" .)