Dashers

7 clues
Sprinters
Churn parts
Speed demons
Certain racers
Certain commuters
Some track athletes
100-meter runners, e.g.
Similar answers:
Aboveallothers
Achers
Actedas
Acutaboveothers
Adas
Adash
Adastra
Addas
Addasfriend
Adidas
Adoptedastheirmotto
Adoptivefathers
Agendas
Aggravatedasalt
Aheartassoundasadollar
Aidas
Alamedas
Aldas
Aldassalad
Allinadaswork