Grave of dictator's endured (5)
I believe the answer is:
staid
'grave' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for staid that I've seen before include "composed" , "Dully unadventurous" , "Demure" , "Stuffy, traditional" , "Serious or sober in character" .)