Answer:

gymnasts

AnswerCrossword Clue
GYMNASTSOlympians who hang around bars?
GYMNASTSAthletes on horses
GYMNASTSCircus performers.
GYMNASTSCircus stars.
GYMNASTSNadia and Olga, e.g.
GYMNASTSNadia, Olga, etc.
GYMNASTSThey're flexible
GYMNASTSThey mount horses