Settler (8)
'settler' is the definition.
(synonyms)
This is all the clue.
(Other definitions for colonist that I've seen before include "Settler" , "I'll settle" , "Coin slot (anag.)" , "Immigrant" .)
'settler' is the definition.
(I know that pioneer is a type of settler)
This is the entire clue.
(Other definitions for pioneer that I've seen before include "Innovator; early settler" , "Launch" , "spacecraft" , "Explorer - innovator" , "First to explore a new area" .)