"nan" wrote:

I am on a
STAR with a published altitude restriction of 6000 feet at fix. ATC
cleared me to descend and cross fix at 6000. 10 miles from the fix,
ATC tells me to "descend to 4000." Do i still have to cross the fix at
6000?

No. The new altitude assignment supercedes anything previous, including the
published altitudes in the STAR.

Of course, it is your responsibility to notice if 4000' is a screwup that
will put you into a mountain.

--
Dan

T182T at 4R4