[aidenn0]

If scheme isn't a lisp, then clojure almost certainly isn't.

To use more widely known languages: Is C++ a C? What about Java? Javascript? Those languages share a lot of syntax and keywords between them, but they are clearly distinct languages.

On the other hand, most people feel comfortable classifying both FORTRAN and C as "in the algol family" while nobody would call either of them an algol.

Actually, if you're at all familiar with the history of FORTRAN, you can see how much it has changed, while nobody denies that FORTRAN 2003 is still as much FORTRAN as FORTRAN IV.