Settle back in bed? OK, reluctantly (7)
I believe the answer is:
dispose
'settle' is the definition.
(thesaurus)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for dispose that I've seen before include "Arrange - to get rid (of)" , "Place in order; bestow" , "Place in order (as God does)" , "make an arrangement" , "Spies do (anag) - get rid of" .)