More exalted lake (8)
I believe the answer is:
superior
This clue might be a double definition.
'more exalted' is the first definition.
'superior' can be an answer for 'exalted' (thesaurus). I am unsure of the 'more' bit.
'lake' is the second definition.
(I know that Superior is a lake)
Can you help me to learn more?
(Other definitions for superior that I've seen before include "Snooty" , "Better than, in a higher class" , "One of higher rank" , "Higher in position or rank" , "One of forty across" .)