Fair question. My answer would be... kinda.
The cash available on an ongoing basis to be re-invested or returned to investors is what you might call levered free cash flow [0], which I think is what you are referring to.
My comment about "available" cash is more like available for big one-time investments like a big acquisition, a special dividend, or something like that.
[0]: https://www.investopedia.com/ask/answers/111714/whats-differ...
I'm not a financier, but isn't "available cash" the amount left over after subtracting the amount needed to service (rather than clear) the debt?