Name lake in Oregon, sadly not now as it was in the past (2,6)
I believe the answer is:
no longer
'not now as it was in the past' is the definition.
I can't tell whether this defines the answer.
'name lake in oregon sadly' is the wordplay.
'name' becomes 'n' (common abbreviation e.g. on forms).
'lake' becomes 'L' (geographical abbreviation).
'in' indicates putting letters inside.
'sadly' is an anagram indicator.
'oregon' is an anagram of 'oonger'.
'l' going inside 'oonger' is 'olonger'.
'n'+'olonger'='NO LONGER'
Can you help me to learn more?
(Other definitions for no longer that I've seen before include "One not disposed to pining" , "Someone who doesn't dream" , "a person without yearnings?" , "Not as formerly" .)