From Longman Dictionary of Contemporary Englishself-starterˌself-ˈstarter noun [countable] INDEPENDENT PERSONsomeone who is able to work successfully on their own without needing other people’s help or a lot of instructions – used to show approval
Examples from the Corpus
self-starter• They are self-starters and want to own their territory and to walk on their own two feet.• Employees need to be self-starters with higher than normal creativity and problem solving skills because a supervisor is not nearby.• In the absence of significant parties, nominations could be won by charismatic self-starters who could project an acceptable image.• We're looking for creative self-starters with at least three years' experience.From Longman Business Dictionaryself-starterˌself-ˈstarter noun [countable]HUMAN RESOURCES someone who is eager to succeed and able to work well on their own, without needing help or instructionsManagement is seeking to promote ambitious self-starters. 