Leave work permanently and go to bed (6)
I believe the answer is:
retire
I believe this is a triple definition!
'leave work permanently' is the first definition.
(I've seen this in another clue)
'and' acts as a link.
'go' is the second definition.
(thesaurus)
'to' is a link.
'bed' is the third definition.
(I know that bed can be written as retire)
(Other definitions for retire that I've seen before include "Pull back" , "Finish employment" , "Quit work, take pension" , "Get your head down" , "Give up work for good" .)