Hired hand (8)
(Other definitions for labourer that I've seen before include "Unskilled worker" , "Workman" , "One is worthy of his hire, according to the Bible" , "Farmhand" , "One does heavy physical work" .)
(Other definitions for employee that I've seen before include "One working for others" , "Company worker" , "Job-holder" , "Person working for wages or salary" , "in work" .)
'hired hand' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aide that I've seen before include "someone in assistance" , "Helper" , "Military officer acting as assistant" , "Personal assistant in the military" , "auxiliary" .)