Crossword Genius

Itchy feet turned red when covered with ground walnuts (10)

Ross

I believe the answer is:

wanderlust

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

'with ground walnuts' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.

'itchy feet turned red when covered' is the wordplay.
I cannot quite see how this works, but
an anagram of 'red' is 'der' which is located in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for wanderlust that I've seen before include "travel bug" , "An urge to stray" , "Restlessness" , "Strong desire to travel" , "Urge to travel" .)

I've seen this clue in The Independent.
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.