Lacking energy and listing (3,4)
I believe the answer is:
run down
I believe this clue is a double definition.
'lacking energy' is the first definition.
(run down can mean exhausted)
'listing' is the second definition.
(a run down is a record or list of things)
'and' acts as a link.
(Other definitions for run down that I've seen before include "Disparage" , "criticised?" , "brief summary" , "Songbird" , "rubbish?" .)