Very austere (6)
I believe the answer is:
severe
(Other definitions for severe that I've seen before include "Harsh and stringent" , "'Strict, harsh (6)'" , "Austere, spartan" , "Draconian" , "Unsparing and uncompromising" .)
I believe the answer is:
severe
(Other definitions for severe that I've seen before include "Harsh and stringent" , "'Strict, harsh (6)'" , "Austere, spartan" , "Draconian" , "Unsparing and uncompromising" .)