Lake still in Scotland! (5)

I believe the answer is:

leven

I'm a little stuck... Click here to teach me more about this clue!

'scotland' is the definition.
Both the answer and definition are singular nouns.
Perhaps they are linked in a way I don't understand?

'lake still' is the wordplay.
'lake' becomes 'L' (geographical abbreviation).
'still' becomes 'even' (synonyms).
'l'+'even'='LEVEN'

'in' acts as a link.

Can you help me to learn more?

(Another definition for leven that I've seen is " Loch".)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.