I have endless trouble due to such indolence (8)
I believe the answer is:
idleness
'such indolence' is the definition.
'idleness' can be an answer for 'indolence' (idleness is a kind of indolence). I'm not sure about the 'such' bit.
'i have endless trouble' is the wordplay.
'have' means one lot of letters go next to another.
'trouble' indicates an anagram.
'endless' is an anagram of 'dleness'.
'i'+'dleness'='IDLENESS'
'due to' is the link.
Can you help me to learn more?
(Other definitions for idleness that I've seen before include "Inactivity, indolence" , "Send lies (anag.)" , "Inertia" , "Inaction" , "Lack of activity" .)