Joyner

4 clues
Fast Florence
Track star Al
Heptathlete Jackie -- -Kersee
She ran for three gold medals in Seoul
Similar answers:
Abagofnerves
Abaserunner
Abelardner
Abner
Abnerdean
Abnerdoubleday
Abners
Abnersingleday
Abneryokum
Abodetojoy
Aboner
Abstainers
Abtoner
Abunchofvintners
Abundleofnerves
Acorners
Actioner
Adinnerwas
Adjutantgeneral
Adorner