Crossword Genius

Not to be paid in improper fashion (5)

Ross

I believe the answer is:

undue

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

'not to be paid' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for undue that I've seen before include "Not warranted" , "Improper" , "Excessive, disproportionate" , "Unwarranted, inordinate" , "too much" .)

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.