Spectator (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">spectator</span>' is the definition.<br/ ><span class="explanation-format__explanation">(onlooker is a kind of spectator)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for onlooker that I've seen before include "Spectator" , "One who watches without becoming involved" , "One observes" , "Person watching" , "He's not involved - just observing" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">spectator</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for observer that I've seen before include "Non-participant; a paper" , "He sees" , "'Onlooker, spectator (8)'" , "One who watches" , "monitor" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">spectator</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for viewer that I've seen before include "Review for TV watcher" , "Spectator" , "One seeing" , "Observer" , "One watching, eg, TV" .)