Intruder (10)
'intruder' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for interloper that I've seen before include "one entering uninvited" , "one who gatecrashes" , "Uninvited attendee" , "Intruder" .)
'intruder' is the definition.
(I know that invader is a type of intruder)
This is the entire clue.
(Other definitions for invader that I've seen before include "Encroacher" , "Trespasser" , "Military intruder" , "One enters by force to conquer" , "One illegally entering" .)