Lie around in bed, getting behind schedule (7)
I believe the answer is:
belated
'getting behind schedule' is the definition.
I can't tell whether this defines the answer.
'lie around in bed' is the wordplay.
'lie' becomes 'tale' (as in telling tales).
'around' is a reversal indicator.
'in' means one lot of letters goes inside another.
'tale' in reverse letter order is 'elat'.
'elat' placed inside '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belated that I've seen before include "Bleated, being overdue" , "After the proper time" , "Tardy" , "Behind time" , "Out of date" .)