Resting, as possibly bade (4)
I believe the answer is:
abed
'resting' is the definition.
(I've seen this in another clue)
'possibly bade' is the wordplay.
'possibly' is an anagram indicator.
'bade' anagrammed gives 'ABED'.
'as' is the link.
(Other definitions for abed that I've seen before include "Sleeping under covers" , "dream location?" , "sleeping? Apparently" , "Yet to rise" , "going to sleep?" .)