Abominable sins at lake lodges (7)
I believe the answer is:
instals
'lodges' is the definition.
(I've seen this before)
'abominable sins at lake' is the wordplay.
I cannot quite understand how this works, but
'at' could be 'in' (synonymous in some cases - eg at school, in school) and 'in' is located in the answer.
'lake' could be 'l' (geographical abbreviation) and 'l' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for instals that I've seen before include "Lodges" , "Puts in" .)