Remained (6)
'remained' is the definition.
(staying is a kind of remaining)
This is the entire clue.
(Other definitions for stayed that I've seen before include "having support" , "Stuck around" , "Remained, did not leave" , "Remained in the same place" , "Tarried" .)
(Other definitions for rested that I've seen before include "Reposed or took a breather" , "Relaxed, took a break" , "Took a break from activities" , "Took one's ease" , "Took break in desert" .)