Late rising around here - that's heavenly! (8)
I believe the answer is:
ethereal
'heavenly' is the definition.
(similar in meaning)
'late rising around here' is the wordplay.
'rising' shows that the letters should be reversed in order (in a down clue, letters go up).
'around' indicates putting letters inside.
'late' back-to-front is 'etal'.
'etal' going around 'here' is 'ETHEREAL'.
'thats' is the link.
(Other definitions for ethereal that I've seen before include "exquisitely airy" , "Airy; heavenly" , "'Extremely delicate, almost not of this world (8)'" , "Fine" , "Insubstantial or heavenly" .)