Lie around in bed, getting behind schedule (7)
I believe the answer is:
belated
'getting behind schedule' is the definition.
I can't judge whether this defines the answer.
'lie around in bed' is the wordplay.
'lie' becomes 'tale' (as in telling tales).
'around' says the letters should be written backwards.
'in' indicates putting letters inside.
'tale' in reverse letter order is 'elat'.
'elat' going within 'bed' is 'BELATED'.
Can you help me to learn more?
(Other definitions for belated that I've seen before include "Bleated, being overdue" , "After the proper time" , "Tardy" , "Behind time" , "Out of date" .)