Roll out of bed (5)
I believe the answer is:
arise
'roll out of bed' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for arise that I've seen before include "W B Yeats: 'I will . . . . . and go now'" , "result" , "Occur; stand up" , "Emerge" , "Get up or come up" .)