Observer (9)
'observer' is the definition.
(onlooker is a kind of observer)
This is all the clue.
(Other definitions for onlooker that I've seen before include "One who watches without becoming involved" , "Bystander" , "One observes" , "He's not involved - just observing" , "Spectator" .)
'observer' is the definition.
(synonyms)
This is all the clue.
(Other definitions for beholder that I've seen before include "Observer" , "One who observes" , "One sees" , "Onlooker" , "Beauty is said to be in this eye" .)
'observer' is the definition.
(watcher is a kind of observer)
This is the entire clue.
(Other definitions for watcher that I've seen before include "Big Brother?" , "Onlooker" , "I observe" , "Alert observer" , "One who observes" .)
'observer' is the definition.
(spectator is a kind of observer)
This is the entire clue.
(Other definitions for spectator that I've seen before include "Part of gate" , "Onlooker; magazine" , "Watcher" , "Periodical" , "I attend sporting event" .)
(Other definitions for scout that I've seen before include "Lookout or pathfinder" , "One on a recce mission" , "Member of organisation for boys" , "Person on the lookout" , "Person sent out to gain information" .)