Crossword Genius

Legal right that heartens foreigners (4)

Ross

I believe the answer is:

lien

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

'legal right' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for lien that I've seen before include "Security for a debt" , "Legal claim on the property of another" , "Right to another's property, if an obligation is not discharged" , "Right to retain property until a debt is paid" , "Sequestration order" .)

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.