Crossword Genius

One who draws this will show some relief (7,3)

Ross

I believe the answer is:

contour map

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

This might be a double definition.

'one who draws this will' is the first definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.

'some relief' is the second definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'show' is the link.

Can you help me to learn more?

(Another definition for contour map that I've seen is " Chart giving height information".)

I've seen this clue in The Irish News.
Want a hint initially instead of a full solution? Install my app