I condemned endless sloth (8)
I believe the answer is:
idleness
'sloth' is the definition.
(I've seen this before)
'i condemned endless' is the wordplay.
'condemned' indicates an anagram.
'endless' is an anagram of 'dleness'.
'i'+'dleness'='IDLENESS'
(Other definitions for idleness that I've seen before include "Send lies (anag.)" , "Inactivity, indolence" , "Having a loaf" , "Sloth - there may be love in it" , "unemployment" .)