A mate to practise sensible economy (7)

I believe the answer is:

husband

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

'a mate' is the definition.
(I know that husband is a type of mate)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for husband that I've seen before include "M arried man" , "Use economically - partner" , "Conserve" , "Use resources economically" , "Wife's partner" .)

I've seen this clue in The Irish 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.