horsing around

[Ripper]

91. Liberal lady in movies was on track to make her mark.
I've got the persons name, is that the answer? or do they want the name of the race or something else.
I'm only concerned as the name has nothing (that I can find) about horses apart from their demise.
Thanks in advance

[cruciverbali]

Does the number of letters give an indication ?

[Ripper]

THe number of letters is 7,5 and is correct for the person

[jabone]

Having shared your doubts at first, I now think the whole clue explains the answer being the name, especially if you consider the different meanings of making a mark.